光波混合法による窒化ガリウム薄膜での励起子間相互作用の実空間マッピング [in Japanese] Real Space Mapping of Exciton Interaction Strength in GaN Films by using Four-Wave-Mixing Technique [in Japanese]
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- 足立 智 ADACHI Satoru
- 北海道大学大学院工学研究院応用物理学部門 Department of Applied Physics, Hokkaido University
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- 戸田 泰則 TODA Yasunori
- 北海道大学大学院工学研究院応用物理学部門 Department of Applied Physics, Hokkaido University
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Author(s)
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- 足立 智 ADACHI Satoru
- 北海道大学大学院工学研究院応用物理学部門 Department of Applied Physics, Hokkaido University
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- 戸田 泰則 TODA Yasunori
- 北海道大学大学院工学研究院応用物理学部門 Department of Applied Physics, Hokkaido University
Abstract
By using four-wave-mixing technique, we demonstrated the possibility of the real space mapping of exciton-exciton interaction and strain in GaN films grown on various substrates. The image obtained from the evaluation of the quantum beats indicates that these reductions correspond to the phase changes between two exciton transitions, reflecting the spatial properties of exciton-exciton interactions. The line-localization suggests a contribution of line-defect to the anomalous interactions.<br>
Journal
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- Journal of the Vacuum Society of Japan
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Journal of the Vacuum Society of Japan 53(6), 387-392, 2010-06-20
The Vacuum Society of Japan
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