This article is cited in 12 papers

Brief Communications

Luminescence and lasing of ZnSe single crystals subjected to one- and two-photon excitation

R. A. Baltrameyunas, A. A. Gladyshchuk, V. P. Gribkovskiĭ, È. P. Kuokshtis, G. P. Yablonskii


Abstract: A study was made of the luminescence and of the amplification, and generation of coherent radiation in ZnSe single crystals subjected to two-photon excitation by ruby laser radiation. Lasing appeared at pump power densities 10–20 MW/cm², depending on the resonator length, and the emitted photon's energy was in the range 2.73–2.76 eV. The divergence of the output radiation was approximately 10°. An investigation of the luminescence spectra obtained under one-photon excitation conditions together with the gain spectra indicated that the main mechanisms responsible for lasing were exciton–phonon and exciton–exciton interactions.

UDC: 621.378.28

PACS: 42.55.Px, 78.55.Hx

Received: 11.08.1980

 English version: Soviet Journal of Quantum Electronics, 1981, 11:4, 539–541

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