Quantum Optoelectronics

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Characterization of Tunneling and Free-Carrier Screening in Coupled Asymmetric GaN/AlGaN Quantum Discs

AIP Conference Proceedings AIP 893 (2007) 1003-1004

Authors:

Kwan H Lee, Jong H Na, Stefan Birner, Sam N Yi, Robert A Taylor, Young S Park, Chang M Park, Tae W Kang
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Characterization of tunneling and free-carrier screening in coupled asymmetric GaN/AlGaN quantum discs

AIP CONF PROC 893 (2007) 1003-1004

Authors:

KH Lee, JH Na, S Birner, SN Yi, RA Taylor, YS Park, CM Park, TW Kang

Abstract:

We present a systematic investigation of free-carrier screening in coupled asymmetric GaN quantum discs with embedded AlGaN barriers using time-integrated and time-resolved micro-photoluminescence measurements, supported by three-dimensional multi-band k.p computational modeling. Free-carrier screening effects decreased with the barrier thickness, which indicates that the source of the free-carriers were carriers tunneling through the barrier.
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Comparison of exciton optical nonlinearities for resonant and non-resonant excitation

JOURNAL OF THE KOREAN PHYSICAL SOCIETY 51:1 (2007) 149-154

Authors:

K Kyhn, RA Taylor
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Creating diamond color centers for quantum optical applications

DIAMOND AND RELATED MATERIALS 16:11 (2007) 1887-1895

Authors:

FC Waldermann, P Olivero, J Nunn, K Surmacz, ZY Wang, D Jaksch, RA Taylor, IA Walmsley, M Draganski, P Reichart, AD Greentree, DN Jamieson, S Prawer
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Magneto-optical studies of single-wall carbon nanotubes

PHYSICAL REVIEW B 76:8 (2007) ARTN 085404

Authors:

IB Mortimer, L-J Li, RA Taylor, GLJA Rikken, O Portugall, RJ Nicholas
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