skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Optically pumped cerium-doped LiSrAlF{sub 6} and LiCaAlF{sub 6}

Abstract

Ce{sup 3+}-doped LiSrAlF{sub 6} crystals are pumped by ultraviolet light which is polarized along the c axis of the crystals to effectively energize the laser system. In one embodiment, the polarized fourth harmonic light output from a conventional Nd:YAG laser operating at 266 nm is arranged to pump Ce:LiSrAlF{sub 6} with the pump light polarized along the c axis of the crystal. The Ce:LiSrAlF{sub 6} crystal may be placed in a laser cavity for generating tunable coherent ultraviolet radiation in the range of 280-320 nm. Additionally, Ce-doped crystals possessing the LiSrAlF{sub 6} type of chemical formula, e.g. Ce-doped LiCaAlF{sub 6} and LiSrGaF{sub 6}, can be used. Alternative pump sources include an ultraviolet-capable krypton or argon laser, or ultraviolet emitting flashlamps. The polarization of the pump light will impact operation. The laser system will operate efficiently when light in the 280-320 nm gain region is injected or recirculated in the system such that the beam is also polarized along the c axis of the crystal. The Ce:LiSrAlF{sub 6} laser system can be configured to generate ultrashort pulses, and it may be used to pump other devices, such as an optical parametric oscillator. 10 figs.

Inventors:
; ;
Issue Date:
Research Org.:
University of California
OSTI Identifier:
228054
Patent Number(s):
5,517,516
Application Number:
PAN: 8-184,944
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 14 May 1996
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; SOLID STATE LASERS; OPTICAL PUMPING; LASER MATERIALS; CERIUM IONS; DOPED MATERIALS; LITHIUM FLUORIDES; STRONTIUM FLUORIDES; ALUMINIUM FLUORIDES; ULTRAVIOLET RADIATION; NEODYMIUM LASERS; CALCIUM FLUORIDES; GALLIUM FLUORIDES; ELECTROMAGNETIC PULSES

Citation Formats

Marshall, C D, Payne, S A, and Krupke, W F. Optically pumped cerium-doped LiSrAlF{sub 6} and LiCaAlF{sub 6}. United States: N. p., 1996. Web.
Marshall, C D, Payne, S A, & Krupke, W F. Optically pumped cerium-doped LiSrAlF{sub 6} and LiCaAlF{sub 6}. United States.
Marshall, C D, Payne, S A, and Krupke, W F. Tue . "Optically pumped cerium-doped LiSrAlF{sub 6} and LiCaAlF{sub 6}". United States.
@article{osti_228054,
title = {Optically pumped cerium-doped LiSrAlF{sub 6} and LiCaAlF{sub 6}},
author = {Marshall, C D and Payne, S A and Krupke, W F},
abstractNote = {Ce{sup 3+}-doped LiSrAlF{sub 6} crystals are pumped by ultraviolet light which is polarized along the c axis of the crystals to effectively energize the laser system. In one embodiment, the polarized fourth harmonic light output from a conventional Nd:YAG laser operating at 266 nm is arranged to pump Ce:LiSrAlF{sub 6} with the pump light polarized along the c axis of the crystal. The Ce:LiSrAlF{sub 6} crystal may be placed in a laser cavity for generating tunable coherent ultraviolet radiation in the range of 280-320 nm. Additionally, Ce-doped crystals possessing the LiSrAlF{sub 6} type of chemical formula, e.g. Ce-doped LiCaAlF{sub 6} and LiSrGaF{sub 6}, can be used. Alternative pump sources include an ultraviolet-capable krypton or argon laser, or ultraviolet emitting flashlamps. The polarization of the pump light will impact operation. The laser system will operate efficiently when light in the 280-320 nm gain region is injected or recirculated in the system such that the beam is also polarized along the c axis of the crystal. The Ce:LiSrAlF{sub 6} laser system can be configured to generate ultrashort pulses, and it may be used to pump other devices, such as an optical parametric oscillator. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {5}
}