IMAI DAICHI 今井大地

… Alternative Names

Imai Daichi 今井大地

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Researcher Number	20739057
Other IDs
Affiliation (Current)	2025: 名城大学, 理工学部, 准教授
Affiliation (based on the past Project Information) *help	2020 – 2025: 名城大学, 理工学部, 准教授 2016 – 2019: 名城大学, 理工学部, 助教 2015: 千葉大学, 学術研究推進機構産業連携研究推進ステーション, 特任研究員
Review Section/Research Field	Principal Investigator Basic Section 30010:Crystal engineering-related / Electronic materials/Electric materials Except Principal Investigator Broad Section D / Medium-sized Section 30:Applied physics and engineering and related fields / Basic Section 21050:Electric and electronic materials-related
Keywords	Principal Investigator 窒化物半導体 / 半導体レーザー / 光熱偏向分光法 / AlInN / 面発光レーザー / 分光エリプソメトリー / 短周期超格子 / 1分子層InN / 吸収係数 / 深い準位 … More / サブバンドギャップ / 光吸収 / ギャップ内吸収 / 光学定数 / 混晶半導体 / 光吸収過程 / サブギャップ / １分子層InN / InGaN混晶 / 秩序混晶 / 擬似混晶（秩序混晶） … More Except Principal Investigator ワイドギャップ半導体 / 面発光レーザー / 光デバイス / トンネル接合 / 分極ドーピング / ガリウムヒ素系半導体 / 相関測定 / 分光エリプソメトリー法 / ビーム品質 / コンタクト比抵抗 / SCOWA / モードロック / 半導体増幅器 / 斜め導波路 / 半導体レーザ / バイセクション構造 / 無反射コート / GaAs系半導体 / 超短パルス Less

ワイドギャップ半導体における不純物ドーピング伝導制御からの脱却
- Principal Investigator
  
  竹内哲也
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 30:Applied physics and engineering and related fields
- Research Institution
  Meijo University
Departure from conductivity control with impurity doping in widegap semiconductors
- Principal Investigator
  
  竹内哲也
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section D
- Research Institution
  Meijo University
次世代光源開発に資する窒化物系混晶半導体サブギャップ領域の光・熱物性制御指針解明Principal Investigator
- Principal Investigator
  
  今井大地
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 30010:Crystal engineering-related
- Research Institution
  Meijo University
Optical characterizations in the sub-bandgap energy region of nitride semiconductor alloy thin films for the development of low-internal-loss LD waveguidesPrincipal Investigator
- Principal Investigator
  
  Imai Daichi
- Project Period (FY)
  2020 – 2021
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 30010:Crystal engineering-related
- Research Institution
  Meijo University
Study on ultrashort pulsed semiconductor laser diodes for fluorescent bio-imaging
- Principal Investigator
  
  Miyajima Takao
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 21050:Electric and electronic materials-related
- Research Institution
  Meijo University
Development of the optical wave-guide of nitride based laser diodes by using InN/GaN short-period superlatticesPrincipal Investigator
- Principal Investigator
  
  Imai Daichi
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Meijo University
Continuous band engineering of quasi-InGaN ternary alloy based on short-period superlatticesPrincipal Investigator
- Principal Investigator
  
  Imai Daichi
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Electronic materials/Electric materials
- Research Institution
  Meijo University
  Chiba University

All 2024 2023 2022 2021 2020 2019 2018 2016 2015

All Journal Article Presentation

[Journal Article] Sub-bandgap optical absorption processes in 300-nm-thick Al1－xInxN alloys grown on a c-plane GaN/sapphire template2024
- Author(s)
  Daichi Imai, Yuto Murakami, Hayata Toyoda, Kouki Noda, Kyosuke Masaki, Kazutoshi Kubo, Mayu Nomura, Makoto Miyoshi, Takao Miyajima, Tetsuya Takeuchi
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 135 Issue: 3
- DOI
  10.1063/5.0181231
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K04956
[Journal Article] Development of High-Reflectivity and Antireflection Dielectric Multilayer Mirrors for AlGaN-Based Ultraviolet-B Laser Diodes and their Device Applications2023
- Author(s)
  Ayumu Yabutani, Ryota Hasegawa, Ryosuke Kondo, Eri Matsubara, Daichi Imai, Sho Iwayama, Yoshito Jin, Tatsuya Matsumoto, Masamitsu Toramaru, Hironori Torii, Tetsuya Takeuchi, Satoshi Kamiyama, Hideto Miyake, Motoaki Iwaya
- Journal Title
  
  Physica Status Soldi A
  
  Volume: 220 Issue: 16 Pages: 831-837
- DOI
  10.1002/pssa.202200831
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K04956, KAKENHI-PROJECT-22H00304
[Journal Article] Near-bandgap optical properties of Al1－xInxN thin films grown on a c-plane freestanding GaN substrate2022
- Author(s)
  Hayata Toyoda, Yuto Murakami, Rino Miyata, Daichi Imai, Makoto Miyoshi, Tetsuya Takeuchi, and Takao Miyajima
- Journal Title
  
  Japanese Journal of Applied Physics
  
  Volume: 61 Issue: SA Pages: SA1017-SA1017
- DOI
  10.35848/1347-4065/ac148a
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K15182
[Journal Article] 分子線エピタキシー法により成長したGaAs系半導体レーザの室温パルス発振2020
- Author(s)
  宮嶋孝夫、荒川亮太、石川裕介、神林大介、森田悠斗、森本晃平、宇野光輝、下原光貴、今井大地、成塚重弥
- Journal Title
  
  名城大学総合研究所　紀要
  
  Volume: 25 Pages: 17-19
- Data Source
  KAKENHI-PROJECT-19H02176
[Journal Article] Analysis of the optical constants and bandgap energy in Al1-xInxN alloys grown on a c-plane freestanding GaN substrate by using spectroscopic ellipsometry2020
- Author(s)
  Daichi Imai, Yuto Murakami, Rino Miyata, Hayata Toyoda, Tomoaki Yamaji, Makoto Miyoshi, Tetsuya Takeuchi and Takao Miyajima
- Journal Title
  
  Japanese Journal of Applied Physics
  
  Volume: 59 Issue: 12 Pages: 121001-121001
- DOI
  10.35848/1347-4065/abc29f
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20K15182, KAKENHI-PROJECT-19H02176
[Journal Article] Growth kinetics and structural perfection of (InN)1/(GaN)n short-period superlattices on +c-GaN template in dynamic atomic layer epitaxy2016
- Author(s)
  Kazuhide Kusakabe, Naoki Hashimoto, Takaomi Itoi, Ke Wang, Daichi Imai, and Akihiko Yoshikawa
- Journal Title
  
  Applied Physics Letters
  
  Volume: 108 Issue: 15
- DOI
  10.1063/1.4946860
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K18036
[Journal Article] Leak path passivation by in situ Al-N for InGaN solar cells operating at wavelengths up to 570 nm2016
- Author(s)
  Ke Wang, Daichi Imai, Kazuhide Kusakabe, and Akihiko Yoshikawa
- Journal Title
  
  Applied Physics Letters
  
  Volume: 108 Issue: 4
- DOI
  10.1063/1.4940970
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K18036
[Journal Article] Systematic study on dynamic atomic layer epitaxy of InN on/in +c-GaN matrix and fabrication of fine-structure InN/GaN quantum wells: Role of high growth temperature2016
- Author(s)
  Akihiko Yoshikawa, Kazuhide Kusakabe, Naoki Hashimoto, Eun-Sook Hwang, Daichi Imai, and Takaomi Itoi
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 120 Issue: 22
- DOI
  10.1063/1.4967928
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K18036
[Journal Article] Systematic study on dynamic atomic layer epitaxy of InN on/in +c-GaN matrix and fabrication of fine-structure InN/GaN quantum wells: Impact of excess In-atoms at high growth temperature2016
- Author(s)
  Akihiko Yoshikawa, Kazuhide Kusakabe, Naoki Hashimoto, Daichi Imai, and Eun-Sook Hwang
- Journal Title
  
  Journal of Applied Physics
  
  Volume: 120 Issue: 23
- DOI
  10.1063/1.4972027
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K18036
[Journal Article] Proposal of leak path passivation for InGaN solar cells to reduce the leakage current2016
- Author(s)
  Ke Wang, Daichi Imai, Kazuhide Kusakabe, and Akihiko Yoshikawa
- Journal Title
  
  Applied Physics Letters
  
  Volume: 108 Issue: 9
- DOI
  10.1063/1.4942507
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K18036
[Journal Article] InN/GaN Short-Period Superlattices as Ordered InGaN Ternary Alloys2015
- Author(s)
  Kazuhide Kusakabe, Daichi Imai, Ke Wang, and Akihiko Yoshikawa
- Journal Title
  
  Physica Status Soldi C
  
  Volume: * Issue: 5-6 Pages: 1-4
- DOI
  10.1002/pssc.201510306
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K18036
[Presentation] Characterizations of the thermal properties for nitride-based wide bandgap semiconductors by photothermal deflection spectroscopy2024
- Author(s)
  Mayu Nomura, Daichi Imai, and Takao Miyajima
- Organizer
  ISPlasma/IC-PLANTS 2024
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] GaN/Al1-xInxN多重積層構造におけるバンドギャップ内光吸収過程の解析2024
- Author(s)
  野田幸樹，小林憲汰, 今井大地, 竹内哲也, 宮嶋孝夫
- Organizer
  第71回　応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-23H05460
[Presentation] GaN/Al1-xInxN多重積層構造におけるバンドギャップ内光吸収過程の解析2024
- Author(s)
  野田幸樹、小林憲汰、今井大地、竹内哲也、宮嶋孝夫
- Organizer
  第71回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] 光熱偏向信号の周波数依存性解析によるGaNの熱伝導率評価2024
- Author(s)
  野村麻友、今井大地、宮嶋孝夫
- Organizer
  第71回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] Analysis of the sub-bandgap optical absorption in sub-100-nm-thick Al1-xInxN alloys by using photothermal deflection spectroscopy2024
- Author(s)
  Kouki Noda, Kana Shibata, Kenta Kobayashi, Daichi Imai, Tetsuya Takeuchi, Makoto Miyoshi, and Takao Miyajima
- Organizer
  ISPlasma/IC-PLANTS 2024
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] 利得スイッチ駆動させた青紫色 GaN 系半導体レーザからの短パルス光の偏光多重とピークパワーの増強2023
- Author(s)
  間渕勇多、太田翔也、鈴木晴道、今井大地、宮嶋孝夫
- Organizer
  第70回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19H02176
[Presentation] 光熱偏向分光法によるAl1-xInxN混晶薄膜のギャップ内光吸収過程評価2023
- Author(s)
  野田幸樹，村上裕人，豊田隼大, 柴田夏奈, 野村麻友, 市川颯人, 今井大地，宮嶋孝夫, 三好実人, 竹内哲也
- Organizer
  第70回春季応用物理学会学術講演会
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] Analysis of the sub-bandgap optical absorption processes in Al1-xInxN thin films grown on a c-plane GaN/Sapphire template2023
- Author(s)
  Kouki Noda, Yuto Murakami, Hayata Toyoda, Kana Shibata, Daichi Imai, Makoto Miyoshi, Tetsuya Takeuchi, and Takao Miyajima
- Organizer
  14th International Conference on Nitride Semiconductors (ICNS-14)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23H05460
[Presentation] 光熱偏向分光法によるGaNトンネル接合中に形成されたバンドギャップ内準位の評価2023
- Author(s)
  市川颯人, 宇田陽, 野田幸樹, 今井大地, 竹内哲也, 宮嶋孝夫
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] 光熱偏向分光法による窒化物系混晶半導体薄膜の光・熱物性評価に関する理論的検討2023
- Author(s)
  野村麻友, 野田幸樹, 今井大地, 宮嶋孝夫
- Organizer
  第84回応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] Analysis of the sub-bandgap optical absorption processes in Al 1 x In x N thin films grown on a c plane GaN/Sapphire template2023
- Author(s)
  Kouki Noda, Yuto Murakami, Hayata Toyoda, Kana Shibata, Daichi Imai, Makoto Miyoshi, Tetsuya Takeuchi, Takao Miyajima
- Organizer
  14th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] Analysis of the sub-bandgap optical absorption processes in 300 nm-thick Al1-xInxN alloys grown on a c-plane GaN/sapphire template by photothermal deflection spectroscopy2023
- Author(s)
  Kouki Noda, Yuto Murakami, Hayata Toyoda, Kazutoshi Kubo, Kyosuke Masaki, Daichi Imai, Makoto Miyoshi, Tetsuya Takeuchi, and Takao Miyajima
- Organizer
  ISPlasma/IC-PLANTS 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] Structural Analysis of a Single Ga1 x In x N/GaN Multi quantum Shell by using an X-ray Nano beam from Synchrotron Radiation2023
- Author(s)
  Takao Miyajima, Takato Ichikawa, Nobuhiro Yasuda, Ryota Kobayashi, Shoya Ota, Yasuhiko Imai, Kazushi Sumitani, Shigeru Kimura, Tomoyo Nakao, Sakiko Enomoto, Shigeo Arai, Satoshi Kamiyama, Daichi Imai
- Organizer
  14th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04956
[Presentation] 光熱偏向分光法によるGaNトンネル接合中に形成されたバンドギャップ内準位の評価2023
- Author(s)
  市川颯人, 宇田陽，野田幸樹, 今井大地, 竹内哲也, 宮嶋孝夫
- Organizer
  第84回　応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-23H05460
[Presentation] 分光エリプソメトリーを用いたサファイア基板上Al1-x Inx N混晶のバンド端近傍における光学特性解析2022
- Author(s)
  豊田隼大, 村上裕人, 宮田梨乃, 今井大地, 宮嶋孝夫, 三好実人, 竹内哲也
- Organizer
  第69回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20K15182
[Presentation] サファイア基板上Al1-x Inx N混晶薄膜における基礎吸収端以下の光吸収過程2022
- Author(s)
  村上裕人, 豊田隼大, 久保寿敏, 正木京介, 今井大地, 宮嶋孝夫, 三好実人, 竹内哲也,
- Organizer
  第69回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20K15182
[Presentation] Near-bandgap optical properties of Al1-xInxN thin films grown on a c-plane freestanding GaN substrate2021
- Author(s)
  Hayata Toyoda, Yuto Murakami, Rino Miyata, Daichi Imai, Makoto Miyoshi, Tetsuya Takeuchi and Takao Miyajima
- Organizer
  ISPlasma 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K15182
[Presentation] Near-bandgap optical properties of Al1-xInxN thin films grown on a c-plane freestanding GaN substrate2021
- Author(s)
  Hayata Toyoda, Yuto Murakami, Rino Miyata, Daichi Imai, Makoto Miyoshi, Tetsuya Takeuchi and Takao Miyajima
- Organizer
  ISPlasma2021/IC-PLANTS2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K15182
[Presentation] 分光エリプソメトリーを用いたAl1-xInxN混晶の光学特性解析における誘電関数モデルの検討2021
- Author(s)
  豊田隼大，村上裕人，宮田梨乃，今井大地，宮嶋孝夫, 三好実人 , 竹内哲也
- Organizer
  第68回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-20K15182
[Presentation] Near-bandgap optical properties of Al1-xInxN thin films grown on a c-plane freestanding GaN substrate2021
- Author(s)
  Hayata Toyoda, Yuto Murakami, Rino Miyata, Daichi Imai, Makoto Miyoshi, Tetsuya Takeuchi and Takao Miyajima
- Organizer
  ISPlasma 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H02176
[Presentation] 分光エリプソメトリーを用いたAl1-xInxN混晶の光学特性解析における誘電関数モデルの検討2021
- Author(s)
  豊田隼大，村上裕人，宮田梨乃，今井大地，宮嶋孝夫, 三好実人，竹内哲也
- Organizer
  第68回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-19H02176
[Presentation] 分光エリプソメトリーを用いたAl1-xInxN混晶の光学特性解析における誘電関数モデルの検討2021
- Author(s)
  豊田隼大，村上裕人，宮田梨乃，今井大地，宮嶋孝夫, 三好実人, 竹内哲也
- Organizer
  第68回応用物理学会春季学術講演
- Data Source
  KAKENHI-PROJECT-20K15182
[Presentation] 大型放射光施設SPring-8のX線マイクロビームを用いた単一Ga1-xInxN/GaN量子殻の局所構造評価2020
- Author(s)
  市川貴登，近藤剣，安田信広，今井康彦，中尾知代，荒井重勇，後藤七美，上山智，今井大地，宮嶋孝夫
- Organizer
  2020年<第67回>春季応用物理学会学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Pulsed-Laser Activation of Implanted Mg Acceptors in GaN Grown on a GaN Substrate2019
- Author(s)
  Takao Miyajima, Yusuke Yamada, Takato Ichikawa, Daichi Imai, and Toshiyuki Sameshima
- Organizer
  ICNS-13 (2019) 13th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Pendeo成長GaNを下地とした3次表面グレーティングを有する横結合分布帰還型GaN系半導体レーザの設計と作製2019
- Author(s)
  高木健太，安藤壮，片山竜二，上向井正裕，今井大地，竹内哲也，宮嶋孝夫
- Organizer
  第66回春季応用物理学会学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Optically Pumped GaN-based Laterally Coupled Distributed-feedback Semiconductor Lasers with 3rd-order Surface Gratings Grown on Pendeo-epitaxy GaN2019
- Author(s)
  Tsuyoshi Andou, Kenta Takagi, Yoshiki Morioka, Masahiro Uemukai, Ryuji Katayama, Daichi Imai, and Takao Miyajima
- Organizer
  ICNS-13 (2019) 13th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] パルスレーザによるGaNにイオン注入したMgアクセプターの活性化2019
- Author(s)
  宮嶋孝夫, 山田祐輔, 市川貴登, 今井大地, 鮫島俊之
- Organizer
  2019年<第66回>応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Characterization of the Optical Constants in Al1-xInxN Alloys Grown on a c-Plane freestanding GaN Substrate; The effect of the potential fluctuations2019
- Author(s)
  Daichi Imai, Tomoaki Yamaji, Makoto Miyoshi, Tetsuya Takeuchi and Takao Miyajima
- Organizer
  1st International Workshop on AlGaN based UV-Laserdiodes
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] 分子線エピタキシー法で成長したGaAs 系バイセクションレーザの設計と作製2019
- Author(s)
  川裕介，荒川亮太，神林大介，成塚重弥，今井大地，宮嶋孝夫
- Organizer
  2019年<第88回>応用物理学会秋季学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Optically Pumped GaN-Based Laterally Coupled Distributed-Feedback Semiconductor Lasers with 3rd-Order Surface Gratings Grown on Pendeo-Epitaxy GaN2019
- Author(s)
  T. Ando, K. Takagi, Y. Morioka, M. Uemukai, R. Katayama, D. Imai and T. Miyajima
- Organizer
  13th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] xInxN混晶におけるバンド端近傍のポテンシャル揺らぎと光学定数2019
- Author(s)
  今井大地，山路知明，三好実人, 竹内哲也, 宮嶋孝夫
- Organizer
  2019年<第66回>応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Pulsed-Laser Activation of Implanted Mg Acceptors in GaN Grown on a GaN Substrate2019
- Author(s)
  T. Miyajima,　Y. Yamada, T. Ichikawa, D. Imai and T. Sameshima
- Organizer
  13th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] 半導体レーザーに応用されている窒化物系混晶半導体の光学特性解析2019
- Author(s)
  今井大地
- Organizer
  第6回ニューフロンティアリサーチワークショップ
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Characterization of Potential Fluctuations and Optical Constants in Al1-xInxN Alloys Grown on C-Plane GaN Substrate2019
- Author(s)
  Daichi Imai, Tomoaki Yamaji, Makoto Miyoshi, Tetsuya Takeuchi, and Takao Miyajima
- Organizer
  ICNS-13 (2019) 13th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] X線マイクロビーム回折を用いた単一Ga1-xInxN/GaN量子殻の局所構造評価2019
- Author(s)
  市川貴登，近藤剣，安田信広，隅谷和嗣，今井康彦，中尾知代，荒井重勇，後藤七美，上山智，今井大地，宮嶋孝夫
- Organizer
  第7回応用物理学会スチューデントチャプター東海地区学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] パルスレーザによるGaNにイオン注入したMgアクセプターの活性化2019
- Author(s)
  宮嶋孝夫、山田祐輔、市川貴登、今井大地、鮫島俊之
- Organizer
  第66回春季応用物理学会学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Al1-xInxN混晶におけるバンド端近傍のポテンシャル揺らぎと光学定数の解析2019
- Author(s)
  今井大地、山路知明、三好実人、竹内哲也、宮嶋孝夫
- Organizer
  第66回春季応用物理学会学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] 分子線エピタキシー法で成長したGaAs系バイセクションレーザの設計と作製2019
- Author(s)
  石川裕介、荒川亮太、神林大介、成塚重弥、今井大地、宮嶋孝夫
- Organizer
  第80回応用物理学会秋季学術講演会 (2019 北海道大学札幌キャンパス)
- Data Source
  KAKENHI-PROJECT-19H02176
[Presentation] 放射光を使ったGaN系混晶半導体とGaN系量子殻の局所構造評価2019
- Author(s)
  宮嶋孝夫、清木良麻、近藤剣、市川貴登、伊奈稔哲、新田清文、宇留賀朋哉、鶴田一樹、隅谷和嗣、今井康彦、木村滋、安田伸広、三好実人、今井大地、竹内哲也、上山智
- Organizer
  第66回春季応用物理学会学術講演会
- Invited
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Pendeo成長GaNを下地とした3次表面グレーティンを有する横結合分布帰還型 GaN系半導体レーザの設計と作製2019
- Author(s)
  高木健太，安藤壮，森岡佳紀，上向井正裕，片山竜二，今井大地，宮嶋孝夫
- Organizer
  2019年<第66回>応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Structural analysis of Ga1-xInxN/GaN five-quantum wells grown on side-walls of GaN nano-wires by using an X-ray nano-beam from synchrotron radiation2019
- Author(s)
  T. Kondo, T. Ichikawa, H. Akasaka, K. Uno, R. Kobayashi, Y. Imai, K. Sumitani, S. Kimura, N. Goto, D. Imai, S. Kamiyama and T. Miyajima
- Organizer
  Electronic Materials Symposium
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Characterization of Potential Fluctuations and Optical Constants in Al1-xInxN Alloys Grown on C-Plane GaN Substrate2019
- Author(s)
  D. Imai, T. Yamaji, M. Miyoshi, T. Takeuchi and T. Miyajima
- Organizer
  13th International Conference on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] 放射光を使ったGaN系混晶半導体とGaN系量子殻の局所構造評価2019
- Author(s)
  宮嶋孝夫，清木良麻，近藤剣，市川貴登，伊奈稔哲，新田清文，宇留賀朋哉，鶴田一樹，隅谷和嗣，今井康彦，木村滋，安田伸広，三好実人，今井大地，竹内哲也，上山智
- Organizer
  2019年<第66回>応用物理学会春季学術講演会
- Invited
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Structural analysis of m-plane Ga1-xInxN/GaN multi-quantum wells grown on GaN　nano-wires by using 1 -1 0 0 reflection of X-ray nano-beam2018
- Author(s)
  Tsurugi Kondo, Ryoma Seiki, Yasuhiko Imai, Kazushi Sumitani, Shigeru Kimura, Kenta Takagi, Nanami Goto, Daichi Imai, Satoshi Kamiyama, and Takao Miyajima
- Organizer
  2018 International Workshop on Nitride Semiconductors
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Optical Characterization of Ordered InGaN Ternary Alloys Based on (InN)1/(GaN)n Short-period Superlattices Grown by Dynamic Atomic Layer Epitaxy (D-ALEp)2018
- Author(s)
  Daichi Imai, Kazuhide Kusakabe, and Akihiko Yoshikawa
- Organizer
  International Symposium on Semiconductor Light Emitting Devices 2017
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] (InN)1/(GaN)n短周期超格子による秩序InGaN混晶の物性評価2018
- Author(s)
  今井大地, 草部一秀, 吉川明彦
- Organizer
  第10回窒化物半導体の成長・評価に関する夏季ワークショップ
- Invited
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] X線ナノビームによる1-100反射を用いたGaNナノワイヤ側壁上m面Ga1-xInxN/GaN量子井戸の構造評価2018
- Author(s)
  近藤剣、清木良麻、今井康彦、隅谷和嗣、木村滋2、高木健太、後藤七美、市川貴登、今井大地、上山智、宮嶋孝夫
- Organizer
  第79回秋季応用物理学会学術講演会
- Data Source
  KAKENHI-PROJECT-17K06360
[Presentation] Systematic study on dynamic atomic layer epitaxy (D-ALEp) of InN on/in GaN matrix and its application for fabricating ordered alloys in whole III-N system2016
- Author(s)
  A. Yoshikawa, K. Kusakabe, K. Wang, and D. Imai
- Organizer
  2016 Lawrence symposium on epitaxy
- Place of Presentation
  Arizona, USA
- Year and Date
  2016-02-20
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K18036
[Presentation] Proposal of “1 ML” InN / GaN Matrix Coherent-Structure QW System and Its Application for Novel Structure Photonic Devices2015
- Author(s)
  A. Yoshikawa, K. Kusakabe, K. Wang, and D. Imai
- Organizer
  Invited Lecture for IEEE Photonics Society
- Place of Presentation
  McGill University, Montreal, Canada
- Year and Date
  2015-06-26
- Data Source
  KAKENHI-PROJECT-15K18036
[Presentation] In-situ ellipsometry observation of Al adatoms and oxidation/nitridation processes for deactivating leak paths in nitride solar cells2015
- Author(s)
  Ke Wang, Daichi Imai, Kazuhide Kusakabe, and Akihiko Yoshikawa
- Organizer
  11th International Conference on Nitride Semiconductors
- Place of Presentation
  Beijing, China
- Year and Date
  2015-08-30
- Data Source
  KAKENHI-PROJECT-15K18036
[Presentation] Systematic study on dynamic atomic layer epitaxy (D-ALEp) of InN on/in GaN matrix and its extension for whole III-N (AlN/GaN/InN) system2015
- Author(s)
  A. Yoshikawa, K. Kusakabe, k. Wang, and D. Imai
- Organizer
  9th Workshop on Frontiers in Electronics (WOFE-2015) & Workshop on Multifunctional Nanomaterials
- Place of Presentation
  San Juan, Commonwealth of Puerto Rico
- Year and Date
  2015-11-15
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K18036
[Presentation] InGaN quasi-ternary alloys based on (InN)1/(GaN)4 short-period superlattices2015
- Author(s)
  Daichi Imai, Kazuhide Kusakabe, Ke Wang, and Akihiko Yoshikawa
- Organizer
  11th International Conference on Nitride Semiconductors
- Place of Presentation
  Beijing, China
- Year and Date
  2015-08-30
- Data Source
  KAKENHI-PROJECT-15K18036
[Presentation] 1 ML InN/GaN matrix coherent-structure QW system and its evolution to short period superlattice-based InGaN ternary alloys2015
- Author(s)
  A. Yoshikawa, K. Kusakabe, K. Wang, and D. Imai
- Organizer
  42nd Int. Conf. on Metallurgical Coatings and Thin Film
- Place of Presentation
  Town and Country Conv. Center, San Diego, CA, USA
- Year and Date
  2015-04-20
- Data Source
  KAKENHI-PROJECT-15K18036
[Presentation] Development of Superfine Structure One Monolayer-thick InN/GaN-Matrix MQW System using Novel ALEp Method: Dynamic-ALEp2015
- Author(s)
  A. Yoshikawa, K. Kusakabe, K. Wang, and D. Imai
- Organizer
  15th International Conference on Atomic Layer Deposition ALD2015
- Place of Presentation
  Portland, Oregon, USA
- Year and Date
  2015-06-28
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K18036

1. 上山智 (10340291)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
2. 竹内哲也 (10583817)

# of Collaborated Projects: 2 results

# of Collaborated Products: 3 results
3. 田中崇之 (10367120)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. 岩谷素顕 (40367735)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. 亀井利浩 (90356824)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. Miyajima Takao (50734836)

# of Collaborated Projects: 1 results

# of Collaborated Products: 5 results
7. 成塚重弥 (80282680)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
8. 秩父重英 (80266907)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. Akihiko Yoshikawa

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
10. Kazuhide Kusakabe

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
11. Wang Ke

# of Collaborated Projects: 1 results

# of Collaborated Products: 13 results

IMAI DAICHI 今井 大地

Imai Daichi 今井 大地

Research Projects

Research Products

Co-Researchers

ワイドギャップ半導体における不純物ドーピング伝導制御からの脱却

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Departure from conductivity control with impurity doping in widegap semiconductors

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次世代光源開発に資する窒化物系混晶半導体サブギャップ領域の光・熱物性制御指針解明Principal Investigator

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Optical characterizations in the sub-bandgap energy region of nitride semiconductor alloy thin films for the development of low-internal-loss LD waveguidesPrincipal Investigator

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Study on ultrashort pulsed semiconductor laser diodes for fluorescent bio-imaging

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Development of the optical wave-guide of nitride based laser diodes by using InN/GaN short-period superlatticesPrincipal Investigator

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Continuous band engineering of quasi-InGaN ternary alloy based on short-period superlatticesPrincipal Investigator

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[Journal Article] Sub-bandgap optical absorption processes in 300-nm-thick Al1－xInxN alloys grown on a c-plane GaN/sapphire template2024

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[Journal Article] Development of High-Reflectivity and Antireflection Dielectric Multilayer Mirrors for AlGaN-Based Ultraviolet-B Laser Diodes and their Device Applications2023

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[Journal Article] Near-bandgap optical properties of Al1－xInxN thin films grown on a c-plane freestanding GaN substrate2022

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[Journal Article] 分子線エピタキシー法により成長したGaAs系半導体レーザの室温パルス発振2020

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[Journal Article] Analysis of the optical constants and bandgap energy in Al1-xInxN alloys grown on a c-plane freestanding GaN substrate by using spectroscopic ellipsometry2020

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[Journal Article] Growth kinetics and structural perfection of (InN)1/(GaN)n short-period superlattices on +c-GaN template in dynamic atomic layer epitaxy2016

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[Journal Article] Leak path passivation by in situ Al-N for InGaN solar cells operating at wavelengths up to 570 nm2016

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DOI

IMAI DAICHI 今井大地

Imai Daichi 今井大地

[Presentation] 光熱偏向分光法によるGaNトンネル接合中に形成されたバンドギャップ内準位の評価2023