V. I. Marin, V. I. Nikitin, M. S. Soskin, A. I. Khizhnyak, “Superluminescence emitted by YAG:Nd<sup>3+</sup> crystals and stimulated emission due to weak transitions”, Kvantovaya Elektronika, 1975, Volume 2, Number 6,Pages <nobr>1340

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Brief Communications

Superluminescence emitted by YAG:Nd³⁺ crystals and stimulated emission due to weak transitions

V. I. Marin, V. I. Nikitin, M. S. Soskin, A. I. Khizhnyak

Abstract: The luminescence spectra of YAG:Nd³⁺ crystals were investigated by express spectroscopy. The dependences of the luminescence intensity on the pump energy were obtained and the Superluminescence energy thresholds were determined at T = 300 and 77°K. It was concluded that stimulated emission was possible due to weak transitions in YAG:Nd³⁺ crystals and the output energy could become saturated. This was supported by single-frequency and multifrequency stimulated emission due to weak transitions in the λ= 1.06 μ region inside a dispersive resonator.

UDC: 621.378

PACS: 78.60.D, 78.45.

Received: 20.10.1974
Revised: 16.01.1975