This article is cited in 11 papers

Brief Communications

Spectral characteristics of the thulium ion and cascade generation of stimulated radiation in a YAIO₃:Tu³⁺:Cr³⁺ crystal

A. O. Ivanov, I. V. Mochalov, A. M. Tkachuk, V. A. Fedorov, P. P. Feofilov


Abstract: Stimulated emission was obtained from Tu³⁺ ions in YAIO₃ crystals doped with 1.0 at.% Tu and 0.1 at.% Cr. The stimulated radiation was generated by the ³F₄→³H₅(λ₁)→³H₅→³H₆(λ₂) cascade at wavelengths λ₁ = 2.34 μ and λ₁=1.93 μ and the threshold was 3.5 J/cm at 90 °K. A scheme of radiative and nonradiative transitions between the terms was constructed. The absorption and luminescence spectra recorded at 4.2 °K were used to derive the Stark splitting scheme of the ³H₄ and ³H₆ terms of the thulium ion.

UDC: 548.0-535.35

PACS: 42.70.Hj, 78.45.+h, 78.55.Hx, 78.30.Hv

Received: 28.05.1974
Revised: 06.09.1974

 English version: Soviet Journal of Quantum Electronics, 1975, 5:1, 117–118