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Publication
Featured researches published by Yoshiyuki Takahira.
Applied Physics Express | 2008
Yuhzoh Tsuda; Masataka Ohta; Pablo Vaccaro; Shigetoshi Ito; Shuichi Hirukawa; Yoshinobu Kawaguchi; Yoshie Fujishiro; Yoshiyuki Takahira; Yoshihiro Ueta; Teruyoshi Takakura; Takayuki Yuasa
Blue laser diodes (LDs) were fabricated on m-plane oriented GaN substrates by atmospheric-pressure metalorganic chemical vapor deposition. Typical threshold current for stimulated emission at a wavelength λ of 463 nm was 69 mA. Blueshift of the spontaneous emission peak with increasing injection current was examined in LDs fabricated on m- and c-plane GaN substrates. Blueshifts for the m-plane LD (λ=463 nm) and the c-plane LD (λ=454 nm) with an injection current density just below threshold were about 10 and 26 nm, respectively. These results confirm that the blueshift in quantum-wells fabricated on m-plane oriented substrates is smaller than on c-plane oriented substrates due to the absence of polarization-induced electric fields.
Archive | 2015
Yoshiyuki Takahira; Yosuke Maemura; Yasuo Fukai; Koji Takahashi
Archive | 2013
Yoshiyuki Takahira; Koji Takahashi; Yosuke Maemura; Hiroshi Kijima
Archive | 2012
Koji Takahashi; Yoshiyuki Takahira
Archive | 2013
Yoshiyuki Takahira; Koji Takahashi; Yosuke Maemura; Hiroshi Kijima; Tomohiro Sakaue
Archive | 2012
Koji Takahashi; Shigetoshi Ito; Yoshiyuki Takahira
Archive | 2012
Yosuke Maemura; Yoshiyuki Takahira
Archive | 2012
Koji Takahashi; Yoshiyuki Takahira; Yosuke Maemura
Archive | 2015
Yoshiyuki Takahira; Yosuke Maemura; Koji Takahashi; Kensei Toyota
Archive | 2012
Koji Takahashi; Yoshiyuki Takahira
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