Brief Communications

Influence of an oxide film on the surfaces of Ga_1–xAl_xAs solid solutions on the threshold current density of an electron-beam-pumped laser

O. V. Bogdankevich, N. A. Borisov, V. F. Pevtsov


Abstract: A study was made of the influence of the duration of etching of Ga_1–xAl_xAs solid solutions on the threshold current density of a laser pumped transversely by an electron beam. It was found that the surface treatment in a weak solution of ammonia made it possible to reduce by a factor of about 1.5 the threshold current density for a laser with a waveguide resonator structure when the electron beam energy was less than 15 keV.

UDC: 621.375.826+621.315.59

PACS: 42.55.Px

Received: 08.10.1980

 English version: Soviet Journal of Quantum Electronics, 1981, 11:5, 672–673

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