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Title: Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition

Abstract

The invention provides an efficient, compact means of generating blue laser light at a wavelength near .about.493+/-3 nm, based on the use of a laser diode-pumped Yb-doped laser crystal emitting on its zero phonon line (ZPL) resonance transition at a wavelength near .about.986+/-6 nm, whose fundamental infrared output radiation is harmonically doubled into the blue spectral region. The invention is applied to the excitation of biofluorescent dyes (in the .about.490-496 nm spectral region) utilized in flow cytometry, immunoassay, DNA sequencing, and other biofluorescence instruments. The preferred host crystals have strong ZPL fluorecence (laser) transitions lying in the spectral range from .about.980 to .about.992 nm (so that when frequency-doubled, they produce output radiation in the spectral range from 490 to 496 nm). Alternate preferred Yb doped tungstate crystals, such as Yb:KY(WO.sub.4).sub.2, may be configured to lase on the resonant ZPL transition near 981 nm (in lieu of the normal 1025 nm transition). The laser light is then doubled in the blue at 490.5 nm.

Inventors:
 [1];  [2];  [3]
  1. (Pleasanton, CA)
  2. (Castro Valley, CA)
  3. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
874062
Patent Number(s):
6304584
Assignee:
The Regents of the University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
blue; diode-pumped; solid-state-laser; based; ytterbium; doped; laser; crystals; operating; resonance; zero-phonon; transition; provides; efficient; compact; means; generating; light; wavelength; near; about493-3; nm; yb-doped; crystal; emitting; zero; phonon; line; zpl; about986-6; fundamental; infrared; output; radiation; harmonically; doubled; spectral; region; applied; excitation; biofluorescent; dyes; about490-496; utilized; flow; cytometry; immunoassay; dna; sequencing; biofluorescence; instruments; host; strong; fluorecence; transitions; lying; range; about980; about992; frequency-doubled; produce; 490; 496; alternate; tungstate; ybkywosub4sub2; configured; lase; resonant; 981; lieu; normal; 1025; 4905; laser light; laser diode; fluorescent dye; laser crystal; /372/

Citation Formats

Krupke, William F., Payne, Stephen A., and Marshall, Christopher D. Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition. United States: N. p., 2001. Web.
Krupke, William F., Payne, Stephen A., & Marshall, Christopher D. Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition. United States.
Krupke, William F., Payne, Stephen A., and Marshall, Christopher D. Mon . "Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition". United States. https://www.osti.gov/servlets/purl/874062.
@article{osti_874062,
title = {Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition},
author = {Krupke, William F. and Payne, Stephen A. and Marshall, Christopher D.},
abstractNote = {The invention provides an efficient, compact means of generating blue laser light at a wavelength near .about.493+/-3 nm, based on the use of a laser diode-pumped Yb-doped laser crystal emitting on its zero phonon line (ZPL) resonance transition at a wavelength near .about.986+/-6 nm, whose fundamental infrared output radiation is harmonically doubled into the blue spectral region. The invention is applied to the excitation of biofluorescent dyes (in the .about.490-496 nm spectral region) utilized in flow cytometry, immunoassay, DNA sequencing, and other biofluorescence instruments. The preferred host crystals have strong ZPL fluorecence (laser) transitions lying in the spectral range from .about.980 to .about.992 nm (so that when frequency-doubled, they produce output radiation in the spectral range from 490 to 496 nm). Alternate preferred Yb doped tungstate crystals, such as Yb:KY(WO.sub.4).sub.2, may be configured to lase on the resonant ZPL transition near 981 nm (in lieu of the normal 1025 nm transition). The laser light is then doubled in the blue at 490.5 nm.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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