Conference Presentations

2017

157 Joe Margetis, John Tolle, Wei Du, Seyed Ghetmiri, Mansour Mortazavi, Sattar Al-Kabi, Yiyin Zhou, Huong Tran, Thach Pham, Wei Dou, Perry Grant, Shui-Qing Yu, Greg Sun, Richard Soref, Baohua Li, “GeSn-based light sources and photoconductors towards integrated photonics for the mid-infrared” Photonics Society Summer Topical Meeting Series (SUM) 2017.

156 Wei Du, Seyed Ghetmiri, Sattar H Al-Kabi, Joe Margetis, Yiyin Zhou, Wei Dou, Aboozar Mosleh, Jifeng Liu, Gregory Sun, Richard Soref, John Tolle, Baohua Li, Mansour Mortazavi, Shui-Qing Yu, “Study of SiGeSn/GeSn/SiGeSn Quantum Well towards All Group-IV-Optoelectronics” CLEO 2017.

155 Thach Pham, Huong Tran, Wei Du, Joe Margetis, Yiyin Zhou, Perry Grant, Gregory Sun, Richard Soref, John Tolle, Baohua Li, Mansour Mortazavi, Shui-Qing Yu, “Investigation of Si-based Ge 0.89 Sn 0.11 Photoconductors with 3.0 μm photoresponse.” CLEO 2017

154 Sattar H Al-Kabi, Seyed Ghetmiri, Joe Margetis, Thach Pham, Yiyin Zhou, Wei Dou, Wei Du, Aboozar Mosleh, Jifeng Liu, Gregory Sun, Richard Soref, John Tolle, Baohua Li, Mansour Mortazavi, Hameed Naseem, Shui-Qing Yu, “Optically pumped Si-based edge-emitting GeSn laser.” CLEO 2017

153 Wei Du, Seyed Ghetmiria, Sattar Al-Kabia, Aboozar Moslehc, Thach Phama, Yiyin Zhoua, Huong Trana, Greg Sune, Richard Sorefe, Joe Margetisf, John Tollef, Baohua Lid, Mansour Mortazavib, Hameed Naseema, Shui-Qing Yu, “Silicon-based Ge0. 89Sn0. 11 photodetector and light emitter towards mid-infrared applications,” Proc. of SPIE, v10108, 1010813-1 (2017)

2016

152 Joe Margetis, Aboozar Mosleh, Seyed Amir Ghetmiri, Sattar Al-Kabi, Wei Dou, Wei Du, Nupur Bhargava, Shui-Qing Yu, Harald Profijt, David Kohen, Roger Loo, Anurag Vohra, John Tolle, “Fundamentals of Ge 1− x Sn x and Si y Ge 1− xy Sn x RPCVD epitaxy,” Materials Science in Semiconductor Processing v70, 38 (2016)

151 Bader Alharthi, Aboozar Mosleh, Joe Margetis, Sattar Al-Kabi, Seyed A Ghetmiri, Huong Tran, Wei Du, Mourad Benamara, Mansour Mortazavi, John Tolle, Hameed A Naseem, Shui-Qing Yu, “CVD growth and characterization of Si x Ge 1− x− y Sn y alloys for high efficiency multi-junction solar cells,” Photovoltaic Specialists Conference (2016

150 Du, Wei, Seyed A. Ghetmiri, Sattar Al-Kabi, Aboozar Mosleh, Joe Margetis, Gregory Sun, Baohua Li et al. “Optical study of Ge 0.95 Sn 0.05/Ge 0.9 Sn 0.1/Ge 0.95 Sn 0.05 quantum well towards group-IV based light source on Si.” In CLEO: Science and Innovations, San Jose, California, United States,5–10, June, 2016.

149 Zhou, Yiyin, Wei Du, Wei Dou, Thach Pham, Aboozar Mosleh, Seyed A. Ghetmiri, Sattar Al-Kabi et al. “Systematic Study of Si-Based Ge 0.9 Sn 0.1 Light-Emitting Diodes towards Mid-Infrared Application.” In CLEO: Science and Innovations, San Jose, California, United States,5–10, June, 2016.

148 Pham, Thach, Wei Du, Huong Tran, Joe Margetis, John Tolle, Gregory Sun, Hameed Naseem, Baohua Li, Mansour Mortazavi, and Shui-Qing Yu. “Systematic study of Si-based Ge/Ge 0.9 Sn 0.1/Ge photodiodes with 2.6 µm detector cutoff.” Oral presentation, the Conference On Lasers and Electrooptics (CLEO): Science and Innovations, June 5~10, San Jose, CA, 2016.

 

2015

147 Du, Wei, Thach Pham, Joe Margetis, Huong Tran, Seyed A. Ghetmiri, Aboozar Mosleh, Greg Sun et al. “Si based mid-infrared GeSn photo detectors and light emitters.” In SPIE Optics + Photonics 2015, San Diego, California, USA, 9-13, August, 2015.

146 Du, Wei, Seyed A. Ghetmiri, Yiyin Zhou, Abooz Mosleh, Hameed Naseem, Shui-Qing Yu, John Tolle et al. “Si-based GeSn edge-emitting LEDs with Sn compositions up to 8%.” In 2015 IEEE Summer Topicals Meeting Series (SUM), Nassau,13-15, July, 2015.

145 S. Al-Kabi, S.A. Ghetmiri, W. Du, H. Tran, G. Sun, R.A. Soref, J. Pham, Thach, Benjamin Conley, Joe Margetis, Huong Tran, Seyed Amir Ghetmiri, Aboozar Mosleh, Wei Du et al. “Enhanced Responsivity up to 2.85 A/W of Si-based Ge 0.9 Sn 0.1 Photoconductors by Integration of Interdigitated Electrodes.” In CLEO: Applications and Technology, San Jose, California, United States, 10–15, May, 2015.

144 Ghetmiri, Seyed Amir, Wei Du, Yiyin Zhou, Joe Margetis, Thach Pham, Aboozar Mosleh, Benjamin Conley et al. “Temperature-dependent Characterization of G 0.94 Sn 0.06 Light-Emitting Diode Grown on Si via CVD.” In CLEO: Applications and Technology, San Jose, California, United States, 10–15, May, 2015.

143 Pham, Thach, Wei Du, Joe Margetis, Seyed A. Ghetmiri, Aboozar Mosleh, Greg Sun, Richard A. Soref et al. “Temperature-dependent study of Si-based GeSn photoconductors.” Silicon Photonics X,San Francisco, California, United States, February 07, 2015.

142 S. Al-Kabi, S.A. Ghetmiri, W. Du, H. Tran, G. Sun, R.A. Soref, J. Tolle, J. Margetis, B. Li, H.A. Naseem, S.Q. Yu, Material and Optical Characterizations for Both Bulk and NIP Double Heterostructure of Germanium Tin, IEEE Symposium on Electromagnetic Compatibility (EMC), Silicon Valley, CA, March 15-21, 2015.

141 A. Mosleh, M. Alher, W. Du, L. Cousar, S.A. Ghetmiri, S. Al-Kabi, W. Dou, P.C. Grant, B.R. Conley, G. Sun, R.A. Soref, B. Li, H.A. Naseem, S.Q. Yu, Growth and characterization of buffer-free SiGeSn epitaxial layers on Si for photonic applications, IEEE Symposium on Electromagnetic Compatibility (EMC), Silicon Valley, CA, March 15-21, 2015.

140 B.R. Conley, W. Du, R.A. Soref, G. Sun, J. Margetis, J. Tolle, B. Li, S.Q. Yu, Enhanced gain of GeSn photoconductors by interdigitated electrodes for midinfrared detection, SPIE Photonics West, San Francisco, CA, 7–12 February 2015

139 T. Pham, B. Conley, J. Margetis, H. Tran, S. A. Ghetmiri, A. Mosleh, W. Du, G. Sun, R. Soref, J. Tolle, H. Naseem, B. Li, and S. Yu, “Enhanced Responsivity up to 2.85 A/W of Si-based Ge0.9Sn0.1 Photoconductors by Integration of Interdigitated Electrodes,” in CLEO, San Jose, CA, 10–15 May, 2015

138 S. A. Ghetmiri, W. Du, Y. Zhou, J. Margetis, T. Pham, A. Mosleh, B. Conley, A. Nazzal, G. Sun, R. Soref, J. Tolle, H. Naseem, B. Li, and S. Yu, “Temperature-dependent Characterization of G0.94Sn0.06 Light-Emitting Diode Grown on Si via CVD,” in CLEO, San Jose, CA, 10–15 May, 2015

 

2014

137 Benjamin R. Conley, Wei Du, Richard A. Soref, Greg Sun, Joe Margetis, John Tolle, Baohua Li, Shui-Qing Yu, Enhanced gain of GeSn photoconductors by interdigitated electrodes for mid-infrared detection, Submitted to Photonic West, San Francisco  (2015).

136 Study the optical constants of Ge1-xSnx thin films and plasmonic structure of gold nanotoroids, Huong Tran, Seyed Amir Ghetmiri, Liang Huang, Lucas Domulevicz, Aboozar Mosleh, Benjamin Conley, Wei Du, Hameed Naseem, and Shui-Qing Yu, In Arkansas ASSET II NSF EPSCoR project review meeting, Little Rock, AR (2014).

135 Yiyin Zhou, Seyed Amir Ghetmiri, Aboozar Mosleh, Benjamin R. Conley, Hameed A. Naseem, Shui-Qing Yu, Room temperature electroluminescence of Ge/Ge1-xSnx/Ge p-i-n double heterojunction light-emitting diodes, In Arkansas ASSET II NSF EPSCoR project review meeting, Little Rock, AR (2014).

134 Sattar Alkabi, Seyed Amir Ghetmiri, Benjamin Conley, Aboozar Mosleh, Wei Du, Hameed Naseem, and Shui-Qing Yu, Photoluminescence measurement and bandgap study of heavily n-doped Ge1-xSnx thin films grown on Si, In Arkansas ASSET II NSF EPSCoR project review meeting, Little Rock, AR (2014).

133 Thach Pham, Benjamin R. Conley, Liang Huang, Seyed Amir Ghetmiri, Aboozar Mosleh, Wei Du, Hameed A. Naseem, and Shui-Qing Yu, Fabrication of nanostructures and their application on GeSn photodetectors, In Arkansas ASSET II NSF EPSCoR project review meeting, Little Rock, AR (2014).

132 Aboozar Mosleh, Murtadha Alher, Larry C. Cousar, Joshua M. Grant, Seyed Amir Ghetmiri, Benjamin R. Conley, Wei Du, Richard A. Soref, Greg Sun, S.-Q. Yu, Hameed A. Naseem, Low temperature growth and characterization of Ge and GeSn deposition on Si substrate using an ultra-high vacuum chemical vapor deposition system, In Arkansas ASSET II NSF EPSCoR project review meeting, Little Rock, AR (2014).

131 Perry C. Grant, Wei Dou, Dongsheng Fan, Yuriy I. Mazur, Vitaliy Dorogan, Shui-Qing Yu, Gregory J. Salamo, Band offsets in GaAs1-xBix (0<x<3.6%) Grown by Molecular Beam Epitaxy, 18th International MBE conference, Flagstaff, Arizona (2014)

130 Thach Pham, Benjamin R. Conley, Liang Huang, Wei Du, Richard A Soref, Greg Sun, Joe Margetis, John Tolle, Hameed A. Naseem, and Shui-Qing Yu, “Enhanced responsivity by integration of interdigitated electrodes on Ge0.93Sn0.07 infrared photodetectors,” IEEE Photonics Conference, San Diego  (2014).

129 Yiyin Zhou, Wei Du, Seyed Amir Ghetmiri, Aboozar Mosleh, Amjad Nazzal, Richard A Soref, Greg Sun, Joe Margetis, John Tolle, Hameed A. Naseem, and Shui-Qing Yu, “Room-temperature electroluminescence from Ge/Ge0.92Sn0.08/Ge double heterostructure LED on Si,” IEEE Photonics Conference, San Diego (2014).

128 Aboozar Mosleh, Seyed Amir Ghetmiri, Benjamin R. Conley, Wei Du, John Tolle, Shui-Qing Yu, and Hameed A. Naseem, Strain Relaxation and Material Quality Improvement of Compressively Strained GeSn Epitaxial Films Through Cyclic Rapid Thermal Annealing Process, submitted to IEEE Summer Topicals Meeting Series, Montreal (2014).

127 Benjamin R. Conley, Aboozar Mosleh, Seyed A. Ghetmiri, Wei Du, John Tolle, Joe Margetis, Richard A. Soref, Greg Sun, Hameed Naseem, and Shui-Qing Yu, Temperature Dependent Spectral Response and Responsivity of GeSn Photoconductor on Si, IEEE Summer Topicals Meeting Series, Montreal (2014).

126 Wei Du, Seyed Amir Ghetmiri, Aboozar Mosleh, Benjamin R. Conley, Liang Huang, Amjad Nazzal, Richard A. Soref3 Greg Sun, John Tolle, Joe Margetis, Hameed A. Naseem, and Shui-Qing Yu, Direct transition Ge0.94Sn0.06 PIN-diode double heterostructure light emitter at high injection, submitted to the 11th International Conference on Group IV Photonics, Paris (2014).

125 Benjamin R. Conley, Yiyin Zhou, Aboozar Mosleh, Seyed Amir Ghetmiri, Wei Du, Richard A Soref, Greg Sun, Joe Margetis, John Tolle, Hameed A. Naseem, and Shui-Qing Yu, Infrared spectral response of a GeSn p-i-n photodiode on Si, in the 11th International Conference on Group IV Photonics, Paris (2014).

124 Aboozar Mosleh, Seyed Amir Ghetmiri, Benjamin R. Conley, Husam Abu-Safe, Zafar Waqar, Mourad Benamara, Samir El-Ghazaly,Shui-Qing Yu, Hameed A. Naseem, Investigation of growth mechanism and role of H2 in very low temperature Si epitaxy, in the 226th ECS Fall Meetings, 2014.

123 A.Mosleh, M. Benamara, S.A. Ghetmiri, B. Conley, W. Du, J. Tolle, S.-Q. Yu, H. Naseem, Investigation of defect formation and propagation in GeSn thin films, in the 226th ECS Fall Meetings, 2014.

122 Benjamin R. Conley, Aboozar Mosleh, Seyed Amir Ghetmiri, Wei Du, Greg Sun, Richard Soref, John Tolle, Joe Margetis, Hameed A. Naseem, and Shui-Qing Yu, Stability of pseudomorphic and compressively strained GeSn thin films under rapid thermal annealing, in the 226th ECS Fall Meetings, 2014.

121 John Tolle, Joe Margetis, Seyed A. Ghetmiri, Aboozar Mosleh, Benjamin R. Conley, Wei Du, Amjad Nazzal, Richard A. Soref, Greg Sun, Hameed A. Naseem and Shui-Qing Yu, Growth and characterization of Ge1-xSnx alloys deposited using a commercial CVD system, in the 226th ECS Fall Meetings, 2014.

120 Wei Du, Seyed Amir Ghetmiri, Aboozar Mosleh, Benjamin R. Conley, Liang Huang, Amjad Nazzal,   Richard A Soref, Greg Sun, John Tolle, Hameed A. Naseem, and Shui-Qing Yu, Investigation of Photoluminescence from Ge1-xSnx: A CMOS-Compatible Material Grown on Si via CVD, the Conference On Lasers and Electrooptics (CLEO), No. JW2A.57, San Jose, CA, USA, June 8-13, 2014.

119 Benjamin R. Conley, Liang Huang, Seyed Amir Ghetmiri, Aboozar Mosleh, Wei Du, Greg Sun, Richard Soref, John Tolle, Hameed A. Naseem, and Shui-Qing Yu, Extended Infrared Absorption to 2.2 µm with Ge1-xSnx Photodetectors Grown on Silicon, the Conference On Lasers and Electrooptics (CLEO), No. SM2H.5, San Jose, CA, USA, June 8-13, 2014.

118 Seyed Amir Ghetmiri, Benjamin R. Conley, Aboozar Mosleh, Liang Huang, Wei Du, Amjad Nazzal, Greg Sun, Richard Soref, John Tolle, Hameed A. Naseem, and Shui-Qing Yu, Photoluminescence from GeSn/Ge Heterostructure Microdisks with 6% Sn Grown on Si via CVD, the Conference On Lasers and Electrooptics (CLEO), No. AW1H.2, San Jose, CA, USA, June 8-13, 2014.

 

2013

117 Thach Pham, Liang Huang, Seyed Amir Ghetmiri, Jingbiao Cui, Hameed Naseem, Shui-Qing Yu, Fabrication of metallic nanostructures and single nanowire devices, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

116 Liang Huang, Huixu Deng, Thach Pham, Matthew Young, Hameed Naseem, Husam Hamza Abu-Safe, Xiaodong Yang, Shui-Qing Yu, Amorphous silicon solar cells using metallic fishnet nanostructures simultaneously for Schottky contact and plasmonics enhancement, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

115 L. Cousar, M.G. Young, S. Shumate, H. Mohammed, S.-Q. Yu, H. Naseem, Low cost Al screen printed high efficiency thin silicon p+/n solar cells, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

114 Benjamin R. Conley, Aboozar Mosleh, Seyed Amir Ghetmiri, Hameed A. Naseem, John Tolle, Shui-Qing Yu, CVD growth of Ge1-xSnx using large scale Si process for higher efficient multi-junction solar cells, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

113 Benjamin Conley, Aboozar Mosleh, Seyed Amir Ghetmiri, Yiyin Zhou, Hameed Naseem and Shui-Qing Yu, Characterization of GeSn for Si-based optoelectronic devices, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

112 Aboozar Mosleh, Seyed Amir Ghetmiri, Benjamin R. Conley, Husam Abu-Safe, Zafar Waqar,  Mourad Benamara, Shui-Qing Yu, Hameed A. Naseem, Nucleation-Step study of silicon homoepitaxy for low-temperature fabrication of Si solar cells, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

111 Asanka Munasinghe, Husam Abu-Safe, Shui-Qing Yu, Hameed A Naseem, Hydrogenated Nanocrystalline silicon using PECVD, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

110 Matthew G. Young, Benjamin Newton, Mourad Benamara, Husam Abu-Safe, Shui-Qing Yu, Hameed Naseem, Fabrication of Si Nanoroot/a-Si composite films using physical vapor deposited Al nanodots, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

109 Seth Shumate, Matthew G. Young, Hafeezuddin M. Khaja, Douglas Hutchings, Larry Cousar, Shui-Qing Yu, and Hameed Naseem, Progress on the hydrogen selective emitter for N-type solar cells, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

108 Husam Abu-Safe, Alan Hickson, Hui Zhong, Hameed Naseem, Shui-Qing Yu, Selected area crystallization of amorphous Si and Ge thin films on glass substrates for solar cell and 3D-optoelectronic applications, In Arkansas ASSET II NSF EPSCoR project review meeting (2013, Little Rock)

107 Perry C. Grant, Dongsheng Fan, Aboozar Mosleh, Vitaliy G. Dorogan, Michael E. Hawkridge, Yuriy I. Mazur, Mourad Benamara,Shui-Qing Yu, Gregory J. Salamo, Photoluminescence Studies of the Effects of Rapid Thermal Annealing on Molecular Beam Epitaxy Grown GaAs1-xBix/GaAs Heterostructures, 30th North American Molecular Beam Epitaxy Conference (NAMBE), Banff, Alberta from October 5-11, 2013

106 Yu. I. Mazur, V. G. Dorogan, L. D. de Souza, D. Fan, M. Benamara, M. Schmidbauer, M. E. Ware, G. G. Tarasov, S.-Q. Yu, G. E. Marques, and G. J. Salamo, Effect of AlGaAs cladding on the luminescent properties of GaAs/GaAs1-xBix/GaAs heterostructures, 4th International Workshop on Bismuth-Containing Semiconductors (4th BCS), Fayetteville, AR, USA, July14-17, 2013

105 Chen Li, Zhaoquan Zeng, Dongsheng Fan, Yusuke Hirono, Jiang Wu, Timothy A. Morgan, Xian Hu, Shuiqing Yu, Zhiming M. Wang, and Gregory J. Salamo, Nanostructures induced by bismuth nano-droplets using molecular beam epitaxy, 4th International Workshop on Bismuth-Containing Semiconductors (4th BCS), Fayetteville, AR, USA, July14-17, 2013

104 P.C. Grant, D. Fan, A. Mosleh, M. Hawkridge, Y. Mazur, M. Benemara, V. Dorogan, S.-Q. Yu, G. Salamo, Investigation of Rapid Thermal Annealing on GaAs1-xBix/GaAs Heterostructures, 4th International Workshop on Bismuth-Containing Semiconductors (4th BCS), Fayetteville, AR, USA, July14-17, 2013

103 S.-Q. Yu, Electron Beam Lithography for Nano Patterning and Characterization of Photovoltaic Devices, In Arkansas ASSET II NSF EPSCoR project strategic plan meeting (2013, Mountain Magazine)

102 A. Mosleh, S.A. Ghetmiri, B.R. Conley, S.-Q. Yu, H.A. Naseem, M. Benamara, J. Tolle, Strain Engineering of high quality CVD grown GeSn films for optoelectronic devices, EMC conference 2013

101 L. Huang, H. Deng, T. Pham, M. Young, H. Naseem, H.H. Abu-Safe, X. Yang, S.-Q. Yu, Amorphous Silicon Solar Cells Using Metallic Fishnet Nanostructures Simultaneously for Schottky Contact and Plasmonics Enhancement EBL, 2013 IEEE PVSC Conference (Tampa)

100 B.R. Conley, A. Mosleh, S. Ghetmiri, H.A. Naseem, J. Tolle, S.-Q Yu, CVD Growth of Ge1-xSnx Using Large Scale Si Process for Higher Efficient Multi-Junction Solar Cells, 2013 IEEE PVSC Conference (Tampa)

99 A. Mosleh, Z. Waqar, S.-Q Yu, H. Abu-Safe, S. Ghetmiri, B. R. M. Benamara, H. A. Naseem, Nucleation-step study of silicon homoepitaxy for low-temperature fabrication of solar cells, 2013 IEEE PVSC Conference (Tampa)

98 H. Abu-Safe, A. Hickerson, H. Naseem, S.-Q. Yu, Selected Area Crystallization of Amorphous Si and Ge Thin Films on Glass Substrates for Solar Cell and 3D-Optoelectronic Applications, 2013 IEEE PVSC Conference (Tampa)

97 M. Young, B. Newton, H. Abu-Safe, S.-Q. Yu, H. Naseem, Fabrication of Al Nanodots by Electron Beam Evaporation, 2013 IEEE PVSC Conference (Tampa)

96 S. Shumate, M. G. Young, Hafeezuddin M. Khaja, Douglas Hutchings, Larry Cousar, S.-Q. Yu, and Hameed Naseem, Progress on the Hydrogen Selective Emitter for N-type solar cells, 2013 IEEE PVSC Conference (Tampa)

95 S. Shumate, H.M. Khaja, D. Hutchings, S.-Q. Yu, H. Naseem, Top-down Aluminum Induced Crystallization for N-type Solar Cell, 2013 IEEE PVSC Conference (Tampa)

 

2012

94 S.-Q. Yu, Electron Beam Lithography for Nano Patterning and Characterization of Photovoltaic Devices, In Arkansas ASSET II NSF EPSCoR project annual meeting (2012, Springdale)

93 L. Huang, T. Pham, H.H. Abu-Safe, M. Young, S. Shumate, B. Newton, H. Naseem and S.-Q. Yu, Fabrication and characterization of optoelectronic devices integrated with nanostructures, In Arkansas ASSET II NSF EPSCoR project annual meeting (2012, Springdale)

92 M.G. Young, S. Shumate, B. Newton, H. Mohammed, L. Cousar, M. Zaman, A. Munansinghe, H. Abu-Safe, S. Q. Yu, H. Naseem, Thin Film Silicon Solar Cells Compatible with Low Temperature Processing, In Arkansas ASSET II NSF EPSCoR project annual meeting (2012, Springdale)

91 M.G. Young, S. Shumate, B. Newton, H. Mohammed, L. Cousar, M. Zaman, A. Munansinghe, H. Abu-Safe, S. Q. Yu, H. Naseem, Thin Film Silicon Solar Cells Compatible with Low Temperature Processing, In Arkansas ASSET II NSF EPSCoR project annual meeting (2012, Springdale)

90 D. Fan, P.C. Grant, S.-Q. Yu, S.R. Johnson, Z.M. Wang, G.J. Salamo, High Performance Near-infrared and Mid-infrared Optoelectronic Devices for Bioscience Applications, ABI 2012 fall research sympoisum

89 L. Huang, T. Pham, M. Young, H. Naseem, S.-Q. Yu, Nanofabrication of ordered semiconductor and metallic structures by electron beam lithography, ABI 2012 fall research sympoisum

88 B. Newton, H. Abu-Safe H, M, Benemara, S.-Q. Yu, H. Naseem, Fabrication of Site Specific Amorphous/NanoCrystalline Silicon Composite Thin Film for Solar Cells, 2012 IEEE PVSC Conference (Austin)

87 L. Huang, H.H. Abu-Safe, M. Young, S. Shumate, B. Newton, H. Naseem and S.-Q. Yu, Fabrication and Characterization of c-Si Solar Cells Integrated with Ordered Metallic Nanostructure Arrays, 2012 IEEE PVSC Conference (Austin)

86 M.G Young, M. Benamara, H. Abu-Safe, S.-Q. Yu, H.A. Naseem, “a-Si:H/c-Si Nanocomposite Material for Solar Cells Fabricated from PECVD,” 2012 IEEE PVSC Conference (Austin)

85 SD Shumate, D.A. Hutchings, M. K. Hafeezuddin, G. Beilke, B. Newton, M. Young, H. Abu-Safe, S.-Q. Yu, H. Naseem, SELF ALIGNED HYDROGENATED SELECTIVE EMITTER FOR N-TYPE SOLAR CELLS, 2012 IEEE PVSC Conference (Austin)

84 A. Elkadi, E. Decrossas, S.-Q. Yu, H. Naseem,S. M. El-Ghazaly, Controlling the Band Gap of Aligned Semiconducting Single-Walled Carbon Nanotubes for THz Modulator, in Proceeding of 2012 European Microwave Week

83 D. Fan, Z. Zeng, X. Hu, V.G. Dorogan, Y. Hirono, C. Li, P. C. Grant, M. Benamara, M. Hawkridge, Y.I. Mazur, S.-Q. Yu, S.R. Johnson, Z.M. Wang, G.J. Salamo, High Optical Quality GaAsBi/GaAs/AlGaAs Separate Confinement Heterostructures, 17th International Conference on Molecular Beam Epitaxy (MBE 2012), Nara, Japan, September 23-28, 2012

82 H. Naseem, S.-Q. Yu, S. El-Ghazaly, Z. Waqar, H. Abu-Safe, S. Adcock, B. Conley, A. Mosleh, B. Hankton, A. Munasinghe, Safety Considerations in Building Ultra-high Vacuum Plasma Enhanced Chemical Vapor Deposition System for Low Temperature Group IV Epitaxy, University Government Industry Micro Nano Symposium (2012) Berkeley, CA

81 S. Shumate, M. Young, B. Newton, E. Porter, S.-Q. Yu, H. Naseem, “Hands-on training in the design and fabrication of N-type solar cells,” University Government Industry Micro Nano Symposium (2012), Berkeley, CA

80 D. Fan, Z. Zeng, X. Hu, V. G. Dorogan, Y. Hirono, C. Li, P. C. Grant, M. Benamara, M. E. Hawkridge, Yu, I. Mazur, S.-Q. Yu, S. R. Johnson, Zh. M. Wang, and G. J. Salamo, Molecular Beam Epitaxy Growth of GaAsBi/GaAs/AlGaAs Separate Confinement Heterostructures, 3rd International Workshop on Bismuth-Containing Semiconductors (3rd BCS), Victoria B.C., Canada, July15-18, 2012

79 D. Fan, , P. C. Grant, Z. Zeng, X. Hu, C. Li, V. G. Dorogan, M. E. Hawkridge, Yu, I. Mazur, S.-Q. Yu, S. R. Johnson, Zh. M. Wang, and G. J. Salamo, GaAsBi/GaAs Multiple Quantum Wells Grown by Molecular Beam Epitaxy, 29th North American Molecular Beam Epitaxy Conference (NAMBE), Atlanta GA, October 14-17, 2012

78 M.A. Khorrami, S. El-Ghazaly, S.-Q. Yu, H. Naseem, Active Terahertz Surface Plasmon Switch inside the Two Dimensional Electron Gas of a Hetero-structure, IMS 2012

77 D. Fan, J. Wu, Z. M. Wang, S.-Q. Yu, G.J. Salamo, InAs QD light emitting diodes on in-situ nano-patterned substrates using Molecular Beam Epitaxy, submitted to SPIE Photonic West 2012

76 D. Fan, Z. Zeng, Z.M. Wang, S.R. Johnson, S.-Q. Yu, G.J. Salamo, Molecular Beam Epitaxy Grown GaInAsSbBi alloys on GaSb substrates for mid-infrared laser diode applications, SPIE Photonic West 2012

 

2011

75 S. Shumate, M. K. Hafeezuddin, S.-Q. Yu, H. A. Naseem, Microstructural Influence of Hydrogenated Amorphous Silicon on Polycrystalline Emitter Solar Cells Prepared by Top-Down Aluminum Induced Crystallization, In Arkansas ASSET II NSF EPSCoR project annual meeting (2011, Heber Springs)

74 L.Ji, L. Huang, H. Naseem, S.-Q. Yu, V. Varadan, Ellipsometric characterization of metamaterial nanostructures on semiconductor substrates for solar cell applications, In Arkansas ASSET II NSF EPSCoR project annual meeting (2011, Heber Springs)

73 M. Young, B. Newton, H. Abu-Safe, H. Naseem, S.-Q. Yu, 3D Nanostructured Crystalline Silicon/Amorphous Silicon Heterojunction Solar Cells, In Arkansas ASSET II NSF EPSCoR project annual meeting (2011, Heber Springs)

72 S.-Q. Yu, Fabricate and characterize photovoltaic devices with integrated optical metamaterials for enhanced performance, In Arkansas ASSET II NSF EPSCoR project annual meeting (2011, Heber Springs)

71 L. Huang, E. Decrossas, B. Newton, L. Ji, H. Naseem, V. Varadan, S.-Q. Yu, Nanofabrication of integrated metamaterials and semiconductors for optoelectronic devices, In Arkansas ASSET II NSF EPSCoR project annual meeting (2011, Heber Springs)

70 Z. Zeng, D. Fan, C. Li, Y. Hirono, T.A. Morgan, X. Hu, J. Wang, J.S. Lee, S.R. Johnson, A. Guo, Z.M. Wang, S.-Q. Yu, and G.J. Salamo, MBE grown III-V-Bi nanostructures and topological insulators, in International workshop on 6.1 Å II-VI and III-V materials and their integration, Phoenix, 2011

69 B. Conley, S. Adcock, A. Mosleh, B. Hankton, Z. Waqar, H. Abu-Safe, H. Naseem, and S.-Q. Yu, Low Temperature Growth of Ge and SiGeSn epitaxial Films growth from UHV-PE-CVD Reactor, in International workshop on 6.1 Å II-VI and III-V materials and their integration, Phoenix, 2011

68 D. Fan, Z. Zeng, V.G. Dorogan, Y. Hirono, C. Li, Y. I. Mazur, Z.M. Wang, S.R. Johnson, S.-Q. Yu, G.J. Salamo, Photoluminescence and Surface Morphology Characterization of GaAsBi Grown on GaAs, in 28th North American Molecular Beam Epitaxy Conference, San Diego, 2011

67 Z. Zeng, D. Fan, C. Li, Y. Hirono, T.A. Morgan, Z.M. Wang, S.-Q. Yu, A. Guo, G.J. Salamo, Epitaxial Growth of High-quality Bi2Te3 and Sb2Te3 Thin Films on GaAs (111), MRS fall meeting 2011, Boston

66 D. Fan, Z. Zeng, V.G. Dorogan, Y. Hirono, C. Li, Y. I. M. Zhiming M. Wang, S.R. Johnson, S.-Q. Yu, G.J. Salamo, Bismuth surfactant mediated growth of InAs quantum dots by Molecular Beam Epitaxy, MRS fall meeting 2011, Boston

65 A. Guo, C. Furrow, Vas. P. Kunets, S.-Q. Yu, G. Salamo, G. A. Sivologlou, R. El-Ganainy, K. G. Markris, D. N. Christodoulids, D. Duchesne, R. Morandotti, M. Volatier-Ravat, V. Aimez, Observation of a Passive PT Phase Transition, in APS MARCH MEETING 2011, MAR11-2010-000974, session Y45, (Atom Interactions with Molecules, Surfaces, and X-Rays)

64 D. Fan, S.-Q. Yu, Z.M. Wang, S.R. Johnson and G. J. Salamo, Novel GaInAsSbBi Materials for Mid-Infrared Type-I Quantum Well Lasers, The Second International Workshop on Bismuth-Containing Semiconductors: Theory, Simulation and Experiment, Guildford, UK, 18-20 July 2011

63 N. Hossain, K. Hild, S. R. Jin, S. J. Sweeney, S.-Q. Yu, S. R. Johnson, D. Ding, and Y. H. Zhang, Temperature Dependence and Physical Properties of GaAsSb/GaAs QW Lasers, Photonics West 2011, San Francsico, CA, USA

 

2010

62 Newton, B., H.K. Mohammed, H. Abu-Safe, S.-Q. Yu, H.A. Naseem, Fabrication of Aluminum Nanodot Assisted Growth of Nanoroots for Application in Amorphous/Crystalline Silicon Composite Thin Film Solar Cells, International Conference on Metallurgical Coatings and Thin Films., 2010

61 S.-Q. Yu, Research Highlights and Proposed Research from Applied Nano & Bio Photonics Group, a presentation given in Arkansas NSF EPSCoR Annual Conference, Little Rock, Oct, 2010

60 Hossain, N., K. Hild, S. R. Jin, S. J. Sweeney, S.-Q. Yu, S. R. Johnson, D. Ding, and Y. H. Zhang, Role of growth temperature on the physical characteristics of GaAsSb/GaAs QW lasers, Proceedings of IEEE Photonics Society 23rd Annual Meeting, Denver, USA, 2010.

59 N. Hossain, K. Hild, S. J. Sweeney, S.-Q. Yu, S. R. Johnson, D. Ding, and Y. H. Zhang, Influence of Device Structures on Carrier Recombination in GaAsSb/GaAs QW Lasers, Photonics Global Conference Singapore, 2010.

58 S.-N. Wu, S.-Q. Yu, S. R. Johnson, D. Ding, Y.-H. Zhang, Ultrahigh extraction efficiency of a semiconductor hemisphere for LED applications, SPIE Photonics West 2010

57 D. Ding, S. R. Johnson, S.-N. Wu, S.-Q. Yu, Y.-H. Zhang, A practical guide to photovoltaic solar cell design, SPIE Photonics West 2010

56 N. Hossain, S. R. Jin and S. J. Sweeney,S. -Q. Yu, S. R. Johnson and Y. -H. Zhang, Improved Performance of GaAsSb/GaAs SQW Lasers, SPIE Photonics West 2010

 

2009

55 Shane R. Johnson, Rajesh Atluri, Ding Ding, Shui-Qing Yu, Yong-Hang Zhang, Nonradiative Losses and Cooling Performance in Semiconductor Based Luminescence Refrigerators, SPIE Photonics West (2009).

 

2008

54 D. Ding, S.-N. Wu, S. Wang, S. R. Johnson, S.-Q. Yu, X. Liu, J. K. Furdyna, Y.-H. Zhang, Multi-junction Solar Cells Based on the Integration of II/VI and III/V Semiconductors, 21st Annual Lasers and Electro Optics Society Meeting, LEOS 2008, Newport Beach CA, November 2008.

53 S. J. Sweeney, K. Hild, I. P. Marko, S.-Q. Yu, S. R. Johnson Y.-H. Zhang, Thermal Characteristics of 1.3 µm GaAsSb/GaAs-based Edge- and Surface-emitting Lasers, 21st IEEE International Semiconductor Laser Conference, Sorrento, Italy, September 2008.

52 S. R. Johnson, D. Ding, R. Atluri, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, Measurement and Improvement of Nonradiative Losses in MBE Grown III-V Semiconductors, 15th International Conference on Molecular Beam Epitaxy, MBE XV, Vancouver, Canada, August 2008.

51 S.-N. Wu, S.-Q. Yu, D. Ding, S. R. Johnson, Y.-H. Zhang, Luminescence Coupling in Direct-Bandgap Multi-Junction Solar Cells, SPIE Optics & Photonics 2008, San Diego CA, August 2008.

50 B. C. Green, S.-Q. Yu, S. J. Sweeney, D. Ding, Y.-H. Zhang, Novel heterostructure design for increased spectral width of superluminescent diodes and dual-wavelength laser diodes, IEEE Device Research Conference, University of California, Santa Barbara, CA, June 2008.

49 S. Wang, X. Liu, D. Ding, S.-N. Wu, S. R. Johnson, S.-Q. Yu, J. K. Furdyna, Y.-H. Zhang, Lattice Matched ZnTe and ZnCdTe/ZnTe Heterostructures Grown on GaSb for Multijunction Solar Cell Applications, 33rd IEEE Photovoltaics Specialists Conference, PVSC 2008, San Diego CA, May 2008.

48 Y.-H. Zhang, S.-Q. Yu, S. R. Johnson, D. Ding, S.-N. Wu, Monolithic Integration of II/VI and III/V Materials for Multi-junction Solar Cells, 33rd IEEE Photovoltaics Specialists Conference, PVSC 2008, San Diego CA, May 2008

47 D. Ding, S. R. Johnson, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, Measurement of Spontaneous Emission Quantum Efficiency in InGaAs/GaAs Quantum Wells, Optical Society of America, Conference on Lasers and Electro Optics/Quantum Electronics and Laser Science Conference, CLEO/QELS 2008, San Jose CA, May 2008.

46 S.-Q. Yu, Y. Cao, S. R. Johnson, D. Ding, Y.-H. Zhang, Y.-Z. Huang, Equilateral-Triangle-Resonator Mid-Infrared Laser Diodes, Optical Society of America, Conference on Lasers and Electro Optics/Quantum Electronics and Laser Science Conference, CLEO/QELS 2008, San Jose CA, May 2008.

45 Y.-H. Zhang, S.-N. Wu, S.-Q. Yu, D. Ding, S. R. Johnson, S. Wang, X. Liu, J. K. Furdyna, A proposed monolithically integrated multijunction solar cell design using II/VI and III/V materials lattice matched to GaSb or InAs substrates, Space Power Workshop, Manhattan Beach CA, April 2008.

44 B. C. Green, S.-Q. Yu, J.-B. Wang, D. Ding, X. Li, Y.-H. Zhang, Broad spectrum superluminescence diodes utilizing internal optical pumping of additional gain regions and separate quasi-Fermi levels, SPIE Photonics West, San Jose CA, January 2008.

43 S. R. Johnson, D. Ding, S.-Q. Yu, Y.-H. Zhang, Fundamental Limits of Luminescence Extraction and Its Impact on Semiconductor Luminescence Refrigeration, SPIE Photonics West, San Jose CA, January 2008.

42 S.-Q. Yu, D. Ding, N. Rider, J.-B. Wang, S. R. Johnson, Y.-H. Zhang, Fabrication and Optimization of High Extraction-Efficiency Semiconductor Optical Structures for Electroluminescence Refrigeration, SPIE Photonics West, San Jose CA, January 2008.

41 H.-X. Liu, S.-Q. Yu, D. Ding, S. R. Johnson, Y.-H. Zhang, Nanosecond Time-Resolved Spectroscopy Measurement for Studies of Semiconductor Electroluminescence Refrigeration, SPIE Photonics West, San Jose CA, January 2008.

40 S.-N. Wu, D. Ding, S.-Q. Yu, S. R. Johnson, Y.-H. Zhang, Impact of Photon Recycling and Spontaneous Emission Coupling on Multi-Junction Solar Cell Design, SPIE Photonics West, San Jose CA, January 2008.

 

2007

39 D. Ding, J.-B. Wang, S. R. Johnson, S.-Q. Yu, Y.-H. Zhang, Determination of Internal Quantum Efficiency in Semiconductors Suitable for Luminescence Refrigeration, Symposium on Nano and Giga Challenges in Electronics and Photonics, NGC2007 (2007).

38 S.-Q. Yu, D. Ding, J.-B. Wang, S. R. Johnson, Y.-H. Zhang, Impact of Electronic Density of States on Electroluminescence Refrigeration, Symposium on Nano and Giga Challenges in Electronics and Photonics, NGC2007 (2007).

37 S.-Q. Yu, N. Rider, D. Ding, J.-B. Wang, S. R. Johnson, Y.-H. Zhang, Light Emitting Diodes with Extremely High Extraction-Efficiency for Electroluminescence Refrigeration, Conference on Lasers and Electro-Optics, 2007-CLEO/IQEC.

36 S R. Johnson, D. Ding, S.-Q. Yu, J.-B. Wang, Y.-H. Zhang, Optimal bandgap energy for optical refrigeration in semiconductors, SPIE Photonics West, San Jose CA, January 2007.

35 N. Rider, S.-Q. Yu, J.-B. Wang, D. Ding, S. R. Johnson, Y.-H. Zhang, Highly Reflective Non-Alloyed Ohmic Contacts on n-type GaAs, SPIE Photonics West, San Jose CA, January 2007.

34 J.-B. Wang, D. Ding, S.-Q. Yu, S. R. Johnson, Y.-H. Zhang, Determination of internal quantum efficiency in semiconductors suitable for luminescence refrigeration, SPIE Photonics West, San Jose CA, January 2007.

33 S.-Q. Yu, N. Rider, J.-B. Wang, D. Ding, S. R. Johnson, Y.-H. Zhang, High extraction efficiency light emitting diodes for electroluminescence refrigeration, SPIE Photonics West, San Jose CA, January 2007

 

2006

32 S. R. Johnson, D. Ding, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, GaAs Quantum Efficiency vs Temperature and Injection, 24th North American Conference on Molecular Beam Epitaxy, Durham NC, October 2006.

31 S.-Q. Yu, N. Rider, D. Ding, J.-B. Wang, S. R. Johnson, Y.-H. Zhang, A general device platform for semiconductor optical refrigeration, 5th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, June 2006.

30 J.-B. Wang, D. Ding, S. R. Johnson, S.-Q. Yu, Y.-H. Zhang, Determination of internal quantum efficiency in semiconductors suitable for luminescence refrigeration, 5th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, June 2006.

29 Y.-H. Zhang, S.-Q. Yu, J.-B. Wang, S. R. Johnson, D. Ding, N. Rider, Latest Progress in the Study of Electroluminescence Refrigeration, 5th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, October 2006.

28 S. R. Johnson, D. Ding, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, Optical Refrigerator Performance versus Bandgap and Efficiency, 5th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, October 2006.

27 S.-Q. Yu, J.-B. Wang, D. Ding, N. Samal, S. R. Johnson, Y.-H. Zhang, Gain-Peak Cavity-Mode Tuning in 1.3 μm GaAsSb/GaAs Quantum well VCSELs, The 33rd International Symposium on Compound Semiconductors, ISCS 2006, Vancouver, Canada, August 2006.

26 D. Ding, S. R. Johnson, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, Intrinsic Irreversibility in Light Emission Processes in Semiconductors, The 33rd International Symposium on Compound Semiconductors, ISCS 2006, Vancouver, Canada, August 2006.

25 S. R. Johnson, D. Ding, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, Influence of Bandgap and Efficiency on Optical Refrigeration, The 33rd International Symposium on Compound Semiconductors, ISCS 2006, Vancouver, Canada, August 2006.

24 S.-Q. Yu, D. Ding, J.-B. Wang, S. R. Johnson, Y.-H. Zhang, Electroluminescence Refrigeration in Semiconductors, Optical Society of America, Conference on Lasers and Electro Optics/Quantum Electronics and Laser Science Conference, CLEO/QELS 2006, Long Beach CA, May 2006.

23 S.-Q. Yu, J.-B. Wang, D. Ding, S. R. Johnson, Y.-H. Zhang, Device fabrication and characterization challenges for electroluminescence refrigeration in semiconductors, WOCSEMMAD, Scottsdale, AZ, February 2006.

22 J.-B. Wang, D. Ding, S.-Q. Yu, S. R. Johnson, Y.-H. Zhang, Photon recycling in luminescence refrigeration, WOCSEMMAD, Scottsdale, AZ, February 2006.

21 S.-Q. Yu, R. Gupta, X. Jin, S. R. Johnson, J. Gu, Y.-H. Zhang, VCSEL Structure Embedded in Metal Heat Sink for Optimal Thermal Management, SPIE Photonics West, San Jose CA, January 2006.

20 J.-B. Wang, D. Ding, S.-Q. Yu, S. R. Johnson, Y.-H. Zhang, Photoluminescence Refrigeration in Semiconductors, SPIE Photonics West, San Jose CA, January 2006.

19 S.-Q. Yu, D. Ding, J.-B. Wang, S. R. Johnson, D. Vasileska, Y.-H. Zhang, Electroluminescence Refrigeration in Semiconductor Light Emitting Diodes, SPIE Photonics West, San Jose CA, January 2006.

18 Y. Cao, S.-Q. Yu, S. R. Johnson, Y. H. Zhang, Single Mode Equal Lateral Triangle Resonant Microcavity Laser Diode at 1.2 µm, SPIE Photonics West, San Jose CA, January 2006.

 

2005 and earlier

17 S.-Q. Yu, X. Jin, S. R. Johnson, Y.-H. Zhang, Gain saturation and carrier distribution effects in molecular beam epitaxy grown GaAsSb/GaAs quantum well lasers, 23rd North American Conference on Molecular Beam Epitaxy, Santa Barbara CA, September 2005.

16 D. Ding, J.-B. Wang, S.-Q. Yu, S. R. Johnson, Y.-H. Zhang, Optimal Bandgap Energy for Optical Refrigeration in Semiconductors, SPIE 50th Annual Meeting/Optics & Photonics 2005, San Diego CA, August 2005.

15 S.-Q. Yu, J.-B. Wang, D. Ding, S. R. Johnson, Y.-H. Zhang, Interplay of thermoelectric Cooling and Electroluminescence Refrigeration in LEDs, 24th International Conference on Thermoelectrics, ITC 2005, Clemson SC, June 2005.

14 S. R. Johnson, D. Ding, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, Optical Refrigeration Window in Terms of Bandgap Energy and Optical Thickness, 4th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, June 2005.

13 D. Ding, S. R. Johnson, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, Thermodynamics of Optical Refrigeration in Semiconductors, 4th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, June 2005.

12 J.-B. Wang, D. Ding, S.-Q. Yu, S. R. Johnson, Y.-H. Zhang, Cooling Efficiency and Cooling Power of Semiconductor Electroluminescence Refrigeration, 4th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, June 2005.

11 J.-B. Wang, D. Ding, S.-Q. Yu, S. R. Johnson, Y.-H. Zhang, Impact of Photon Recycling on Photoluminescence Refrigeration in Semiconductors, 4th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, June 2005.

10 S.-Q. Yu, D. Ding, J.-B. Wang, S. R. Johnson, Y.-H. Zhang, Interplay of Thermoelectric Cooling and Electric Luminescence Cooling in LEDs, 4th Annual Workshop on Laser Cooling of Solids, Albuquerque NM, June 2005.

9 D. Ding, S. R. Johnson, J.-B. Wang, S.-Q. Yu, Y.-H. Zhang, Thermodynamics of Optical Refrigeration in Semiconductors, Conference on Lasers and Electro Optics/International Quantum Electronics Conference, 2005 CLEO/IQEC, Baltimore MD, May 2005

8 J.-B. Wang, D. Ding, S.-Q. Yu, S. R. Johnson, Y.-H. Zhang, Electroluminescence Cooling in Semiconductors, Conference on Lasers and Electro-Optics, Conference on Lasers and Electro Optics/International Quantum Electronics Conference, 2005 CLEO/IQEC, Baltimore MD, May 2005.

7 S.-Q. Yu, X. Jin, Y. Cao, D. Ding, J.-B. Wang, S. R. Johnson, Y.-H. Zhang, P. Dowd, M. Adamcyk, S. A. Chaparro, Above Room Temperature CW Edge-Emitting Lasers with GaAsP/GaAs/GaAsSb Active Regions, Optical Society of America, Conference on Lasers and Electro Optics/International Quantum Electronics Conference, 2004 CLEO/IQEC, San Francisco CA, May 2004.

6 Y. Cao, S.-Q. Yu, X. Jin, D. Ding, J.-B. Wang, S. R. Johnson, Y.-H. Zhang, Tunable MWIR Diode Lasers Gas Sensing Applications, Transportation and Homeland Security, 3rd Micro Sensor Workshop, Scottsdale AZ, April 2004.

5 N. Samal, Y. Cao, D. Ding, J.-B. Wang, S.-Q. Yu, X. Jin, S. Chaparro, Yu. G. Sadofyev, S. R. Johnson, Y.-H. Zhang, Room Temperature CW Operation of Long Wavelength GaAsSb/GaAs VCSELs Grown on GaAs, SPIE Photonics West, San Jose CA, January 2003.

4 S. R. Johnson, C.-Z. Guo, S. Chaparro, Yu. G. Sadofyev, Y. Cao, D. Ding, J.-B. Wang, N. Samal, X. Jin, S.-Q. Yu, D. J. Smith, Y.-H. Zhang, Evaluating the Band Alignment of MBE Grown GaAsSb on GaAs, 12th International Conference on Molecular Beam Epitaxy, MBE XII, San Francisco CA, September 2002.

3 S. R. Johnson, S. Chaparro, N. Samal, P. Dowd, S.-Q. Yu, J.-B. Wang, K. Shiralagi, Y.-H. Zhang, Room Temperature Continuous-Wave Operation of 1.3 µm GaAsP/GaAs/GaAsSb VCSELs Grown on GaAs, 28th European Conference on Optical Communication, Copenhagen, Denmark, September 2002.

2 S. R. Johnson, S. Wu, Y. Sadofyev, Y. Cao, S. Chaparro, J. Wang, N. Samal, S. Q. Yu, C. Navarro, J. Xu, Z.-B. Chen, D. Ding, C.-Z. Guo, N. Newman, Y.-H. Zhang, Ion and Neutral Energy Spectra for Dilute Nitride Growth, North American Conference on Molecular Beam Epitaxy, Providence, October 2001.

1 Z.B. Chen, S.R. Johnson, C. Navarro, S. Chaparro, J. Xu, N. Samal, J. Wang, Y. Cao, S. Yu, Y.-H. Zhang, Strain Compensated GaAsP/GaAsSb/GaAs 1.3 mm lasers grown by MBE on GaAs substrate, Oral presentation at the CLEO, Baltimore, 2001.