Electrically Pumped CdZnSe/ZnSe Blue-Green Vertical-Cavity Surface-Emitting Lasers.

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  • Yokogawa Toshiya
    Matsushita Electric Ind. Co., Ltd., Semiconductor Research Center, 3–1–1 Yagumo–Nakamachi, Moriguchi, Osaka 570, Japan
  • Yoshii Shigeo
    Matsushita Electric Ind. Co., Ltd., Semiconductor Research Center, 3–1–1 Yagumo–Nakamachi, Moriguchi, Osaka 570, Japan
  • Tsujimura Ayumu
    Matsushita Electric Ind. Co., Ltd., Semiconductor Research Center, 3–1–1 Yagumo–Nakamachi, Moriguchi, Osaka 570, Japan
  • Sasai Yoichi
    Matsushita Electric Ind. Co., Ltd., Semiconductor Research Center, 3–1–1 Yagumo–Nakamachi, Moriguchi, Osaka 570, Japan
  • Merz James
    Department of Electrical Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA

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説明

We demonstrate an electrically pumped CdZnSe/ZnSe blue-green vertical-cavity surface-emitting laser (VCSEL) with a SiO2/TiO2 dielectric multilayer mirror. Electrically pumped lasing was achieved at 77 K with a threshold current of 3 mA (pulsed). A low far-field radiation angle of 7° was observed above the threshold in a 10-µ m-diameter device, which indicates the spatial coherence expected for lasing.

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