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Title: Effect of reactor radiation on the operation of a neodymium inorganic liquid laser

Abstract

The radiation parameters of a neodymium liquid laser based on phosphorus oxychloride are measured upon irradiation of the laser medium by neutrons and gamma-rays from a BARS-6 two-zone reactor. This irradiation increases the laser energy by 20%-30% compared to the laser energy in the absence of irradiation. The lasing threshold is observed to decrease with increasing the irradiation dose. In the case of simultaneous optical and nuclear pumping of the laser medium, the free-running regime of laser operation converts to the regime of high-power pulses. (lasers)

Authors:
; ; ; ;  [1]
  1. State Scientific Center of the Russian Federation 'A.I. Leipunski Institute for Physics and Power Engineering', Obninsk, Kaluga Region (Russian Federation)
Publication Date:
OSTI Identifier:
21470147
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 39; Journal Issue: 2; Other Information: DOI: 10.1070/QE2009v039n02ABEH013825
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GAMMA RADIATION; IRRADIATION; LIQUID LASERS; NEODYMIUM; NEUTRON FLUENCE; NEUTRONS; NUCLEAR PUMPING; OPTICAL PUMPING; OXYCHLORIDES; PHOSPHORUS; PULSES; RADIATION DOSES; REACTOR OPERATION; BARYONS; CHLORINE COMPOUNDS; DOSES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; HALOGEN COMPOUNDS; IONIZING RADIATIONS; LASERS; METALS; NONMETALS; NUCLEONS; OPERATION; OXYGEN COMPOUNDS; OXYHALIDES; PUMPING; RADIATIONS; RARE EARTHS

Citation Formats

Dobrovol'skii, A F, Kabakov, D V, Seregin, A A, Seregina, E A, and Tikhonov, G V. Effect of reactor radiation on the operation of a neodymium inorganic liquid laser. United States: N. p., 2009. Web. doi:10.1070/QE2009V039N02ABEH013825.
Dobrovol'skii, A F, Kabakov, D V, Seregin, A A, Seregina, E A, & Tikhonov, G V. Effect of reactor radiation on the operation of a neodymium inorganic liquid laser. United States. doi:10.1070/QE2009V039N02ABEH013825.
Dobrovol'skii, A F, Kabakov, D V, Seregin, A A, Seregina, E A, and Tikhonov, G V. Sat . "Effect of reactor radiation on the operation of a neodymium inorganic liquid laser". United States. doi:10.1070/QE2009V039N02ABEH013825.
@article{osti_21470147,
title = {Effect of reactor radiation on the operation of a neodymium inorganic liquid laser},
author = {Dobrovol'skii, A F and Kabakov, D V and Seregin, A A and Seregina, E A and Tikhonov, G V},
abstractNote = {The radiation parameters of a neodymium liquid laser based on phosphorus oxychloride are measured upon irradiation of the laser medium by neutrons and gamma-rays from a BARS-6 two-zone reactor. This irradiation increases the laser energy by 20%-30% compared to the laser energy in the absence of irradiation. The lasing threshold is observed to decrease with increasing the irradiation dose. In the case of simultaneous optical and nuclear pumping of the laser medium, the free-running regime of laser operation converts to the regime of high-power pulses. (lasers)},
doi = {10.1070/QE2009V039N02ABEH013825},
journal = {Quantum Electronics (Woodbury, N.Y.)},
number = 2,
volume = 39,
place = {United States},
year = {Sat Feb 28 00:00:00 EST 2009},
month = {Sat Feb 28 00:00:00 EST 2009}
}
  • The measuring technique and the results of measuring the pump efficiency {delta} and lifetime {tau} of the {sup 4}F{sub 3/2} level of the Nd{sup 3+} ion ({lambda}=1.05 {mu}m) in a liquid Nd{sup 3+}:POCl{sub 3}-SnCl{sub 4}-UO{sub 2}{sup 2+} laser-active medium irradiated in a pulsed BARS-6 reactor are presented. The values of {delta} and {tau} are equal to 1.9 {+-} 0.2 % and 230 {+-} 30{mu}s, respectively. This confirms the data of subthreshold experiments performed earlier on a neutron generator and shows that the conditions required for using this liquid as the active medium of a nuclear-pumped quantum amplifier are satisfied. (lasers)
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