E. V. Zharikov, S. P. Kalitin, V. V. Laptev, V. G. Ostroumov, Z. S. Saidov, V. A. Smirnov, I. A. Shcherbakov, “Chromium-doped scandium gallium garnet crystals as active media of lasers utilizing Ho3+ and Tm3+ infrared transitions”, Kvantovaya Elektronika, 1986, Volume 13, Number 1,Pages 216

This article is cited in 24 papers

Brief Communications

Chromium-doped scandium gallium garnet crystals as active media of lasers utilizing Ho³⁺ and Tm³⁺ infrared transitions

E. V. Zharikov, S. P. Kalitin, V. V. Laptev, V. G. Ostroumov, Z. S. Saidov, V. A. Smirnov, I. A. Shcherbakov

Abstract: An investigation was made of the luminescence spectra of yttrium scandium gallium garnet crystals activated with Cr³⁺, Ho³⁺, and Tm³⁺ ions. Measurements were made of the excited state lifetime of Ho³⁺ and Tm³⁺. Efficient Cr→Ho and Cr→Tm nonradiative energy transfer was observed. The existence of energy transfer mechanisms having a shorter range than the dipoledipole one was established. The microscopic constants of dipole-dipole interaction were determined. It is concluded that efficient Cr→Ho and Cr→Tm energy transfer suggests that efficient room-temperature lasers may be developed utilizing infrared transitions in these rare-earth ions.

UDC: 621.373.826.038.825.2

PACS: 42.55.Rz, 42.60.By, 42.60.Jf, 42.60.Lh, 42.70.Hj

Received: 27.05.1985