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Kvantovaya Elektronika, 1987, Volume 14, Number 12, Pages 2434–2440 (Mi qe11248)  

Lasers

Temperature dependence of the threshold and mechanisms of lasing in CdS single crystals subjected to one-photon excitation

M. S. Brodin, L. V. Taranenko, S. G. Shevel'
Abstract: The temperature dependences of the pump intensity Ith corresponding to the lasing threshold were determined in the range 4.2 K≤T≤300 K for CdS single crystals with different levels of losses in the case of one-photon pumping with nitrogen laser radiation. The temperature dependence Ith(T) was nonmonotonic. An analysis of the dependences Ith(T) was made using the available theoretical treatments and a comparison of the experimental and calculated subthreshold emission spectra indicated competition between three lasing mechanisms, which changed with temperature, took place under the experimental conditions. These mechanisms were exciton-phonon, exciton-exciton, and exciton-electron inelastic scattering. In particular, the fall of Ith recorded under certain conditions on increase in temperature could be attributed to spectral degeneracy of two or three of these mechanisms.
Received: 24.10.1986
Revised: 17.03.1987
English version:
Soviet Journal of Quantum Electronics, 1987, Volume 17, Issue 12, Pages 1548–1551
DOI: https://doi.org/10.1070/QE1987v017n12ABEH011248
Bibliographic databases:
Document Type: Article
UDC: 621.378.35:539.293.254
PACS: 78.55.Et, 71.35.-y, 63.20.Ls
Language: Russian


Citation: M. S. Brodin, L. V. Taranenko, S. G. Shevel', “Temperature dependence of the threshold and mechanisms of lasing in CdS single crystals subjected to one-photon excitation”, Kvantovaya Elektronika, 14:12 (1987), 2434–2440 [Sov J Quantum Electron, 17:12 (1987), 1548–1551]
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    Квантовая электроника Quantum Electronics
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