2017 - 2020 Polymorphism control of pharmaceutical organic compounds based on the physical principal clarified by a femtosecond laser
2015 - 2018 Clarification of crystal growth mechanism for development of large bulk GaN single crystal
2015 - 2018 Active control of growth mode of organic molecules by femtosecond laser
2014 - 2017 Development of CsLiB6O10 crystal with high photorefractive damage tolerance and its application to high-power UV light generation
2014 - 2017 Polymorphism control of drug candidate compounds at the interface of liquid/air bubble induced by femtosecond laser irradiation
2011 - 2016 Trial research project on the development of professionals with trans-professional literacy
2012 - 2014 Research on ultrashort-wavelength vacuum ultraviolet generation by using stimulated Raman scattering
2012 - 2014 Development of femtosecond laser techniques for the production of high-quality single crystals of organic materials
2011 - 2014 Development of a new protein crystallization technique by the femtosecond laser irradiation at gel-solution or air-solution interfaces
2008 - 2010 Development of the growth technique of truly bulk GaN single crystals
2006 - 2007 The control of conductivity of bulk GaN crystals which are grown by Na flux method.
2005 - 2006 レーザー誘起核発生を用いたフォトクロミック結晶の多形成長制御
2004 - 2006 Theoretical Analysis and Control of Harmonic Generation Aimed at Applying to Electronics Implementation
2004 - 2006 Development of bulk GaN single crystal substrate for high-power ultra-violet laser diodes
2002 - 2003 Research on new frequency convesion crystal BABF for vacuum ultraviolet light generation
2000 - 2000 次世代・紫外レーザー光源
2000 - 2000 新波長変換結晶KABのセラミックスからの単結晶化
1998 - 1999 Development of new nonlinear optical crystal KィイD22ィエD2AlィイD22ィエD2BィイD22ィエD2OィイD27ィエD2 for vacuum ultra-violet light generation
1997 - 1998 Development of High Power-Tunable-Vacuum UV Laser Source
1997 - 1997 複屈折率制御可能な新三酸化ホウ素系ボレート結晶の探索
1996 - 1997 n型窒化アルミ/p型ダイヤモンド・ヘテロ構造による高効率冷陰極の作製
1996 - 1997 Study of New Borate Crystal for Ultraviolet Light Generation
1995 - 1996 Development of tunable all solod-state UV laser
1995 - 1995 Heteroepitaxial Nucleation and Growth of Diamond
1994 - 1995 Study on fabrication on semiconducting diamond film by laser ablation
1994 - 1995 Study on blue light generation by nonlinear optical crystal KLN
タンパク質の結晶化
紫外光の応用
有機バイオエレクトロニクス結晶
CsLib6O10およびGdYCOBによる紫外光発生に関する研究
窒化物材料の開発
Crystal Growth of Protein
Application of ultra-violet laser light
Organic and bio-electronic crystal
Generation of UV light by using CsLib6O10 and GdYCOB
Study on functional nitride materials
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Papers (603)：
Uta Michibata, Mihoko Maruyama, Yutaro Tanaka, Masashi Yoshimura, Hiroshi Y. Yoshikawa, Kazufumi Takano, Yoshihiro Furukawa, Koichi Momma, Rie Tajiri, Kazumi Taguchi, et al. The impact of crystal phase transition on the hardness and structure of kidney stones. Urolithiasis. 2024. 52. 1. 57-1-57-12
Tomoaki Sumi, Junichi Takino, Yoshio Okayama, Shigeyoshi Usami, Masayuki Imanishi, Masashi Yoshimura, Yusuke Mori. Origin of Black Color in Heavily Doped n-Type GaN Crystal. physica status solidi (b). 2024. 2400027-1-2400027-7
Kazuma Hamada, Masayuki Imanishi, Kosuke Murakami, Shigeyoshi Usami, Mihoko Maruyama, Masashi Yoshimura, Yusuke Mori. Suppression of polycrystal nucleation by methane addition at moderate timing to maintain GaN crystal growth on point seeds in the Na-flux method. Journal of Crystal Growth. 2024. 627. 127522-1-127522-6
Hozumi Takahashi, Yudai Yoshimura, Ryota Murai, Ryuzo Kawamura, Mihoko Maruyama, Masashi Yoshimura, Yusuke Mori, Hiroshi Y. Yoshikawa. Spatiotemporal Control of Polymorphic Phase Transition of Glycine Crystals by Three-Dimensional Femtosecond Laser Ablation Processing. The Journal of Physical Chemistry Letters. 2023. 180-186
Kazuma Hamada, Masayuki Imanishi, Kosuke Murakami, Shigeyoshi Usami, Mihoko Maruyama, Masashi Yoshimura, Yusuke Mori. Preparation of a freestanding GaN substrate in the Na-flux method by laser-assisted separation. Japanese Journal of Applied Physics. 2023. 62. 12. 125503-125503
河村貴宏, 河村貴宏, 秋山亨, 宇佐美茂佳, 今西正幸, 吉村政志, 吉村政志, 森勇介, 森川良忠, 寒川義裕. Surface Structures of GaN under OVPE Growth Conditions and Influence of Point Defects on Optical Properties of GaN. 日本結晶成長学会誌(CD-ROM). 2023. 50. 1
Yoshikawa Hiroshi, Maruyama Mihoko, NakajimA Makoto, Yoshimura Masashi, Mori Yusuke. Crystal growth control of organic compounds and biomaterials by laser ablation. Optronics. 2022. 484. 159-163
TANDRYO Ricksen, 村上航介, 久保等, 今西正幸, 宇佐美茂佳, 丸山美帆子, 吉村政志, 森勇介. Enhancing Nucleation on Micro-size GaN point-seed crystals by Utilizing Nitrogen Desorption Properties in the Na-Flux Method. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2022. 69th
鷲田将吾, TANDRYO Ricksen, 中島達彦, 村上航介, 今西正幸, 宇佐美茂佳, 丸山美帆子, 吉村政志, 森勇介. Dependence of crystallinity of GaN crystals grown by the Na flux point seed technique on the off-angle of the seed substrate. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2022. 69th
A method of manufacturing a group-IIInitride crystal includes: preparing a seed substrate; and supplying a group-IIIelement oxide gas and a nitrogen element-containing gas at a supersaturation ratio (Po/Pe) greater than 1 and equal to or less than 5, then, growing a group-IIInitride crystal on the seed substrate, wherein the Po is a supply partial pressure of the group-IIIelement oxide gas, and the Pe is an equilibrium partial pressure of the group-IIIelement oxide gas.
2007 - Prizes for Science and Technology(Research Category), The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology
2006 - 第4回産学官連携功労者表彰・科学技術政策担当大臣賞
2006 - 第20回(2006年度)独創性を拓く 先端技術大賞特別賞
2006 - 第1回モノづくり連携大賞特別賞
2006 - 第16回日経BP技術賞
2005 - 第21回櫻井健二郎氏記念賞
2005 - 第29回レーザー学会賞 論文賞(解説部門)
2005 - Prize of Laser Engineering; Medal of Excellent Review Paper
