氮化镓微腔中蓝光波长的室温激光发射。

Room temperature lasing at blue wavelengths in gallium nitride microcavities.

作者信息

Someya T, Werner R, Forchel A, Catalano M, Cingolani R, Arakawa Y

机构信息

Institute of Industrial Science, University of Tokyo, 7-22-1 Roppongi, Minato-ku, Tokyo 106-8558, Japan. Lehrstuhl fur Technische Physik, Universitat Wurzburg, Am Hubland, 97074 Wurzburg, Germany. Consiglio Nazionale delle.

出版信息

Science. 1999 Sep 17;285(5435):1905-6. doi: 10.1126/science.285.5435.1905.

DOI:10.1126/science.285.5435.1905

PMID:10489367

Abstract

Lasing action has been demonstrated at blue wavelengths in vertical cavity surface-emitting lasers at room temperature. The microcavity was formed by sandwiching indium gallium nitride multiple quantum wells between nitride-based and oxide-based quarter-wave reflectors. Lasing action was observed at a wavelength of 399 nanometers under optical excitation and confirmed by a narrowing of the linewidth in the emission spectra from 0.8 nanometer below threshold to less than 0.1 nanometer (resolution limit) above threshold. The result suggests that practical blue vertical cavity surface-emitting lasers can be realized in gallium-nitride-based material systems.

摘要

室温下，垂直腔面发射激光器已在蓝光波长下实现了激光发射。微腔是通过在氮化物基和氧化物基四分之一波长反射镜之间夹入氮化铟镓多量子阱形成的。在光激发下，观察到波长为399纳米的激光发射，并且通过发射光谱线宽从阈值以下的0.8纳米变窄到阈值以上小于0.1纳米（分辨率极限）得到了证实。该结果表明，可以在氮化镓基材料系统中实现实用的蓝光垂直腔面发射激光器。