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 slop 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.
- Inventors:
-
- Castro Valley, CA
- Livermore, CA
- Pleasanton, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 866869
- Patent Number(s):
- 4811349
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- -doped; colquiriite; solid; laser; material; chromium; doped; licaalf; useful; tunable; crystal; intrinsic; slope; efficiency; comparable; exceeding; alexandrite; current; leading; performer; vibronic; sideband; lasers; output; 720; nm; 840; measured; slop; 60; kr; pumped; configuration; limit; coupling; approach; quantum; defect; limited; value; 83; implies; excited; absorption; esa; negligible; potential; tuning; range; satisfy; requirements; pump; density; storage; medium; incorporating; tm; multimegajoule; single; shot; fusion; facility; pump laser; laser output; storage medium; pumped laser; current lead; laser material; tunable laser; laser pump; slope efficiency; output coupling; single shot; chromium doped; laser crystal; laser pumped; /372/
Citation Formats
Payne, Stephen A, Chase, Lloyd L, Newkirk, Herbert W, and Krupke, William F. Cr.sup.3+ -doped colquiriite solid state laser material. United States: N. p., 1989.
Web.
Payne, Stephen A, Chase, Lloyd L, Newkirk, Herbert W, & Krupke, William F. Cr.sup.3+ -doped colquiriite solid state laser material. United States.
Payne, Stephen A, Chase, Lloyd L, Newkirk, Herbert W, and Krupke, William F. Sun .
"Cr.sup.3+ -doped colquiriite solid state laser material". United States. https://www.osti.gov/servlets/purl/866869.
@article{osti_866869,
title = {Cr.sup.3+ -doped colquiriite solid state laser material},
author = {Payne, Stephen A and Chase, Lloyd L and Newkirk, Herbert W and Krupke, William 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 slop 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}