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Title: Scaling of energy characteristics of polycrystalline Fe{sup 2+}:ZnSe laser at room temperature

Abstract

The lasing characteristics of lasers based on diffusiondoped Fe{sup 2+}:ZnSe polycrystalline samples excited at room temperature by an electric-discharge HF laser are studied. A sample doped from two sides (working surfaces) emitted laser radiation with the energy E='253' mJ with the slope efficiency η{sub d} = 33% and the efficiency with respect to the absorbed energy η{sub abs} ≈ 28% in the case of an elliptical pump spot of size a × b = 6.8 × 7.5 mm. It is found that the possibility of increasing the lasing energy of the samples of these types by increasing the pump spot area (at a constant pump energy density) is limited by the appearance of parasitic generation typical for disk lasers. The first results are reported on the laser based on a polycrystalline sample made by a technology that allows one to form a zero dopant concentration on the surface and a maximum concentration inside the sample (i.e., to create a sample with internal doping). The possibilities of increasing the Fe{sup 2+}:ZnSe laser energy at room temperature by using multilayer samples fabricated by this doping method are discussed. (lasers)

Authors:
; ; ; ;  [1]; ; ;  [2]
  1. G.G.Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, Nizhnii Novgorod (Russian Federation)
  2. A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
22551187
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 45; Journal Issue: 9; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABUNDANCE; DOPED MATERIALS; ELECTRIC DISCHARGES; ENERGY DENSITY; ENERGY EFFICIENCY; IRON IONS; LASER RADIATION; LASERS; POLYCRYSTALS; SCALING; TEMPERATURE RANGE 0273-0400 K; ZINC SELENIDES

Citation Formats

Gavrishchuk, E M, Ikonnikov, V B, Rodin, S A, Savin, D V, Timofeeva, N A, Kazantsev, S Yu, Kononov, I G, and Firsov, K N. Scaling of energy characteristics of polycrystalline Fe{sup 2+}:ZnSe laser at room temperature. United States: N. p., 2015. Web. doi:10.1070/QE2015V045N09ABEH015845.
Gavrishchuk, E M, Ikonnikov, V B, Rodin, S A, Savin, D V, Timofeeva, N A, Kazantsev, S Yu, Kononov, I G, & Firsov, K N. Scaling of energy characteristics of polycrystalline Fe{sup 2+}:ZnSe laser at room temperature. United States. doi:10.1070/QE2015V045N09ABEH015845.
Gavrishchuk, E M, Ikonnikov, V B, Rodin, S A, Savin, D V, Timofeeva, N A, Kazantsev, S Yu, Kononov, I G, and Firsov, K N. Wed . "Scaling of energy characteristics of polycrystalline Fe{sup 2+}:ZnSe laser at room temperature". United States. doi:10.1070/QE2015V045N09ABEH015845.
@article{osti_22551187,
title = {Scaling of energy characteristics of polycrystalline Fe{sup 2+}:ZnSe laser at room temperature},
author = {Gavrishchuk, E M and Ikonnikov, V B and Rodin, S A and Savin, D V and Timofeeva, N A and Kazantsev, S Yu and Kononov, I G and Firsov, K N},
abstractNote = {The lasing characteristics of lasers based on diffusiondoped Fe{sup 2+}:ZnSe polycrystalline samples excited at room temperature by an electric-discharge HF laser are studied. A sample doped from two sides (working surfaces) emitted laser radiation with the energy E='253' mJ with the slope efficiency η{sub d} = 33% and the efficiency with respect to the absorbed energy η{sub abs} ≈ 28% in the case of an elliptical pump spot of size a × b = 6.8 × 7.5 mm. It is found that the possibility of increasing the lasing energy of the samples of these types by increasing the pump spot area (at a constant pump energy density) is limited by the appearance of parasitic generation typical for disk lasers. The first results are reported on the laser based on a polycrystalline sample made by a technology that allows one to form a zero dopant concentration on the surface and a maximum concentration inside the sample (i.e., to create a sample with internal doping). The possibilities of increasing the Fe{sup 2+}:ZnSe laser energy at room temperature by using multilayer samples fabricated by this doping method are discussed. (lasers)},
doi = {10.1070/QE2015V045N09ABEH015845},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 9,
volume = 45,
place = {United States},
year = {2015},
month = {9}
}