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Kvantovaya Elektronika, 1983, Volume 10, Number 9, Pages 1843–1850 (Mi qe4616)  

Estimate of the stimulated emission cross section of a fourlevel active medium from the kinetics of decay of its superradiance

A. A. Makovetskii, R. P. Tishchenko
Abstract: An analysis is made of the problem of kinetics of the superradiance decay in the case of nonlinear quenching of excited centers in four-level active media. A method is proposed for estimating the initial axial gain and of the stimulated emission cross sections of active media: it is based on a simultaneous analysis of the normalized superradiant flux and integrated population of the active medium. The proposed method is not sensitive to nonlinear quenching. A qualitative analysis is made of the decay of excitation in neodymium pentaphosphate crystals after pulsed excitation with laser radiation of the 0.538 μ wavelength and stimulated emission cross sections are estimated for the 4F3/24I11/2 transition in Nd3+ resulting in lasing at 1.051 μ and at some other wavelengths of this transition.
Received: 03.12.1982
English version:
Soviet Journal of Quantum Electronics, 1983, Volume 13, Issue 9, Pages 1216–1220
DOI: https://doi.org/10.1070/QE1983v013n09ABEH004616
Bibliographic databases:
Document Type: Article
UDC: 621.373.826
PACS: 42.55.Rz
Language: Russian


Citation: A. A. Makovetskii, R. P. Tishchenko, “Estimate of the stimulated emission cross section of a fourlevel active medium from the kinetics of decay of its superradiance”, Kvantovaya Elektronika, 10:9 (1983), 1843–1850 [Sov J Quantum Electron, 13:9 (1983), 1216–1220]
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