Control of crystal symmetry and optical properties in semiconductor quantum structure

• Project/Area Number: 19760007
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Applied materials science/Crystal engineering
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: YAMASHITA Kenichi Kyoto Institute of Technology, 工芸科学研究科, 助教 (00346115)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,660,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥360,000); Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2007: ¥2,100,000 (Direct Cost: ¥2,100,000)
• Keywords: 結晶工学 / 電子・電気材料 / 半導体物性 / 光物性 / 量子井戸 / 半導体光物性 / 半導体量子井戸構造 / 変調分光法 / 光学的異方性

Research Abstract

本研究では、結晶構造の対称性操作により半導体の光学物性が制御できることを示すために、量子構造を形成した半導体発光材料の光学的異方性を評価した。偏光フォトリフレクタンスの測定結果より、電子エネルギー帯構造の結晶面方位異方性と光学遷移強度の相関を明らかにした。特に、高次のエネルギー遷移を含んだ広いスペクトル領域での光学遷移異方性を初めて実験的に示し、理論から予測されていた基礎物性と比較、検討した。

Research Products

• [Journal Article] Solid-state-organic laser using self-written active waveguide with in-line Fabry-Perot cavity (2008)
  • Author(s): K. Yamashita, A. Kitanobou, M. Ito, E. Fukuzawa, and K. Oe
  • Journal Title: Applied Physics Letters 92
  • Peer Reviewed
• [Journal Article] Simple fabrication technique of distributed-feedback polymer laser by direct photo nanoimprint lithography (2008)
  • Author(s): K. Yamashita, M. Arimatsu, M. Takayama, K. Oe, and H. Yanagi
  • Journal Title: Applied Physics Letters 92
  • Peer Reviewed
• [Journal Article] Solid-state organic laser emission at 970 mu from dye-doped fluorinated-polyimide planer waveguides (2008)
  • Author(s): S. Yuyama, T. Nakajima, K. Yamashita, and K. Oe
  • Journal Title: Applied Physics Letters 93
  • Peer Reviewed
• [Journal Article] Multilayered solid-state organic laser for simultaneous multiwavelength oscillations (2008)
  • Author(s): K. Yamashita, M. Arimatsu, N. Takeuchi, M. Takayama, K. Oe, and H. Yanagi
  • Journal Title: Applied Physics Letters 93
  • Peer Reviewed
• [Journal Article] Anisotropic optical transitions in [110]-oriented semiconductor quantum well studied by photoreflectance spectroscopy (2007)
  • Author(s): K. Yamashita, H. Asai, and K. Oe
  • Journal Title: Japanese Journal of Applied Physics Vol. 46 Pages: 1536-1539
  • NAID: 10018900835
  • Peer Reviewed
• [Journal Article] Anisotropic optical transitions in [110]-oriented semiconductor quantum well studied by photoreflectance spectroscopy (2007)
  • Author(s): K., Yamashita
  • Journal Title: Japanese Journal of Applied Physics 46 Pages: 1536-1539
  • NAID: 10018900835
  • Peer Reviewed
• [Journal Article] Optical Amplification in organic Dye-Doped Polymeric Channel Waveguide under CW Optical Pumping (2007)
  • Author(s): K., Yamashita
  • Journal Title: Japanese Journal of Applied Physics 46
  • NAID: 40015511989
  • Peer Reviewed
• [Journal Article] Continuous-wave stimulated emission and optical amplification in europium (III)-aluminum nanocluster-doped polymeric waveguide (2007)
  • Author(s): K., Yamashita
  • Journal Title: Applied Physics Letters 91 Pages: 0811151-3
  • Peer Reviewed
• [Presentation] Oscillating characteristics of self-written active waveguide laser with in-line cavity (2008)
  • Author(s): K. Yamashita, M. Ito, A. Kitanobou, E. Fukuzawa, and K. Oe
  • Organizer: 13th Optoelectronic and Communications Conference
  • Place of Presentation: シドニー
  • Year and Date: 2008-07-09
• [Presentation] Optical amplification and lasing in self-written active waveguide (2008)
  • Author(s): K. Yamashita, A. Kitanobou, E. Fukuzawa, M. Itoh, and K. Oe
  • Organizer: Conference on Lasers and Electro-Optics 2008
  • Place of Presentation: サンノゼ
  • Year and Date: 2008-05-05
• [Presentation] Experimental Investigation of Anisotropic Optical Transition Matrix Elements in [110]-Oriented InGaAs/InAlAs Quantum Well (2007)
  • Author(s): K. Yamashita, et al.
  • Organizer: 34th International Symposium on Compound Semiconductors
  • Place of Presentation: Kyoto
  • Year and Date: 2007-10-15
• [Presentation] Experimental Investigation of Anisotropic Optical Transition Matrix Elements in [110]-Oriented InGaAs/InAIAs Quantum Well (2007)
  • Author(s): K., Yamashita
  • Organizer: 34th International Symposium on Compound Semiconductors
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 2007-10-15
• [Remarks]
  • URL: http://www.cis.kit.ac.jp/~oelab/
• [Remarks]
  • URL: http://www.cis.kit.ac.jp/~oelab/