"Gensai Tei,Liu Long,Yohei Koyanagi,Masahiro Watanabe","Room Temperature Near Infrared Electroluminescence of Si/CaF<sub>2</sub> Quantum Cascade Laser Structures grown on SOI Substrate","The 2020 International Conference on Solid State Devices and Materials",,"The Japan Society of Applied Physics",,,"pp. 301-302",2020,Sept.
"Youhei Koyanagi,Gensai Tei,Liu Long,Masahiro Watanabe","Analysis of near-infrared wavelength quantum cascade laser using CaF<sub>2</sub>/Si heterostructures","The 81st The Japan Society of Applied Physics Autumn Meeting 2020",,"The Japan Society of Applied Physics",,,"p. 12-015",2020,Sept.
"Kiyoshi Takeuchi,Munetoshi Fukui,Takuya Saraya,Kazuo Itou,Toshihiko Takakura,Shinichi Suzuki,Yohichiroh Numasawa,Naoyuki Shigyo,Kuniyuki Kakushima,Takuya Hoshii,Kazuyoshi Furukawa,Masahiro Watanabe,Hitoshi Wakabayashi,Kazuo Tsutsui,Hiroshi Iwai,Atsushi Ogura,Wataru Saito,Shin-ichi Nishizawa,Masanori Tsukuda,Ichiro Omura,Hiromichi Ohashi,Toshiro Hiramoto","Bipolar Transistor Test Structures for Extracting Minority Carrier Lifetime in IGBTs",,"IEEE Trans. On Semiconductor Manufactureing",,"Vol. 33","No. 2","pp. 159-165",2020,May
"Yoshiro Kumagai,Satoshi Fukuyama,Hiroki Tonegawa,Kizashi Mikami,Kodai Hirose,Kanta Tomizawa,Kensuke Ichikawa,Masahiro Watanabe","Negative differential resistance of CaF<sub>2</sub>/Si double barrier resonant tunneling diodes fabricated using plasma etching mesa isolation process",,"Japanese Journal of Applied Physics","The Japan Society of Applied Physics","vol. 59",,"  SIIE03-1",2020,Apr.
"Takumi Kaneko,Yoshiro Kumagai,Koudai Hirose,Hiroki Tonegawa,Kizashi Mikami,Kanta Tomizawa,Honami Sato,Masahiro Watanabe","Analysis of resistance switching characteristics of CaF<sub>2</sub>/Si/CaF<sub>2</sub> quantum-well structures","The 67th The Japan Society of Applied Physics Spring Meeting",,"The Japan Society of Applied Physics",,,"p. 11-140",2020,Mar.
"Honami Sato,Yoshiro Kumagai,Kizashi Mikami,Hiroki Tonegawa,Koudai Hirose,Kanta Tomizawa,Takumi Kaneko,Masahiro Watanabe","Room Temperature Negative Differential Resistance of Si/CaF<sub>2</sub> p-type Triple-barrier Resonant Tunneling Diodes","The 67th The Japan Society of Applied Physics Spring Meeting",,"The Japan Society of Applied Physics",,,"p. 11-139",2020,Mar.