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Title: Cr/sup 3 +/-doped colquiriite solid state laser material

Abstract

Chromium doped colquiriite, LiCaAlF/sub 6/:Cr/sup 3 +/, is useful as a tunable laser crystal that has a high intrinsic slope efficiency, comparable to or exceeding that of alexandrite, the current leading performer of vibronic sideband Cr/sup 3 +/ lasers. The laser output is tunable from at least 720 nm to 840 nm with a measured slope efficiency of about 60% in a Kr laser pumped laser configuration. The intrinsic slope efficiency (in the limit of large output coupling) may approach the quantum defect limited value of 83%. The high slope efficiency implies that excited state absorption (ESA) is negligible. The potential for efficiency and the tuning range of this material satisfy the requirements for a pump laser for a high density storage medium incorporating Nd/sup 3 +/ or Tm/sup 3 +/ for use in a multimegajoule single shot fusion research facility. 4 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Lab., CA (USA)
OSTI Identifier:
6211326
Patent Number(s):
-US-A7176014
Application Number:
ON: DE89010106
Assignee:
US Dept. of Energy LLNL; EDB-89-067502
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 42 ENGINEERING; SOLID STATE LASERS; DESIGN; CHROMIUM IONS; EFFICIENCY; INERTIAL CONFINEMENT; INVENTIONS; LASER MATERIALS; CHARGED PARTICLES; CONFINEMENT; IONS; LASERS; MATERIALS; PLASMA CONFINEMENT; 700208* - Fusion Power Plant Technology- Inertial Confinement Technology; 420300 - Engineering- Lasers- (-1989)

Citation Formats

Payne, S.A., Chase, L.L., Newkirk, H.W., and Krupke, W.F. Cr/sup 3 +/-doped colquiriite solid state laser material. United States: N. p., 1988. Web.
Payne, S.A., Chase, L.L., Newkirk, H.W., & Krupke, W.F. Cr/sup 3 +/-doped colquiriite solid state laser material. United States.
Payne, S.A., Chase, L.L., Newkirk, H.W., and Krupke, W.F. Thu . "Cr/sup 3 +/-doped colquiriite solid state laser material". United States.
@article{osti_6211326,
title = {Cr/sup 3 +/-doped colquiriite solid state laser material},
author = {Payne, S.A. and Chase, L.L. and Newkirk, H.W. and Krupke, W.F.},
abstractNote = {Chromium doped colquiriite, LiCaAlF/sub 6/:Cr/sup 3 +/, is useful as a tunable laser crystal that has a high intrinsic slope efficiency, comparable to or exceeding that of alexandrite, the current leading performer of vibronic sideband Cr/sup 3 +/ lasers. The laser output is tunable from at least 720 nm to 840 nm with a measured slope efficiency of about 60% in a Kr laser pumped laser configuration. The intrinsic slope efficiency (in the limit of large output coupling) may approach the quantum defect limited value of 83%. The high slope efficiency implies that excited state absorption (ESA) is negligible. The potential for efficiency and the tuning range of this material satisfy the requirements for a pump laser for a high density storage medium incorporating Nd/sup 3 +/ or Tm/sup 3 +/ for use in a multimegajoule single shot fusion research facility. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {3}
}