Presentation 2001/6/8
Fabrication of GaN-Based Quantum Dots and Their Application to Lasers
Koichi Tachibana, Takao Someya, Yasuhiko Arakawa,
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Abstract(in English) The growth and optical properties of GaN-based quantum dots (QDs) have been investigated. The lasers with GaN-based QDs embedded in the active layer are expected to have the superior characteristics such as lower threshold current densities at short wavelength. First, InGaN self-assembled QDs are demonstrated. The lateral size of InGaN QDs was as small as 10-nm-scale and the intense photoluminescence was observed at room temperature. For laser applications, the structure with InGaN QDs embedded in the active layer was fabricated. A clear threshold was observed in the dependence of the excitation intensity at room temperature under optical excitation. Second, selective growth of InGaN QDs is demonstrated to improve the uniformity of QDs.
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Keyword(in English) InGaN / GaN / quantum dots / lasers / metalorganic chemical vapor deposition
Paper # LQE2001-25
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Committee LQE
Conference Date 2001/6/8(1days)
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Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fabrication of GaN-Based Quantum Dots and Their Application to Lasers
Sub Title (in English)
Keyword(1) InGaN
Keyword(2) GaN
Keyword(3) quantum dots
Keyword(4) lasers
Keyword(5) metalorganic chemical vapor deposition
1st Author's Name Koichi Tachibana
1st Author's Affiliation Research Center for Advanced Sciencc and Technology and Institute of Industrial Science, University of Tokyo()
2nd Author's Name Takao Someya
2nd Author's Affiliation Research Center for Advanced Sciencc and Technology and Institute of Industrial Science, University of Tokyo
3rd Author's Name Yasuhiko Arakawa
3rd Author's Affiliation Research Center for Advanced Sciencc and Technology and Institute of Industrial Science, University of Tokyo
Date 2001/6/8
Paper # LQE2001-25
Volume (vol) vol.101
Number (no) 113
Page pp.pp.-
#Pages 6
Date of Issue