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Title: Blue-green upconversion laser

Abstract

A blue-green laser (450-550 nm) uses a host crystal doped with Tm.sup.3+. The Tm.sup.+ is excited through upconversion by a red pumping laser and an IR pumping laser to a state which transitions to a relatively lower energy level through emissions in the blue-green band, e.g., 450.20 nm at 75 K. The exciting laser may be tunable dye lasers or may be solid-state semiconductor laser, e.g., GaAlAs and InGaAlP.

Inventors:
 [1];  [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
867497
Patent Number(s):
4949348
Assignee:
United States of america as represented by Department of Energy (Washington, DC)
Patent Classifications (CPCs):
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-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
blue-green; upconversion; laser; 450-550; nm; host; crystal; doped; tm; excited; pumping; transitions; relatively; energy; level; emissions; band; 450; 20; 75; exciting; tunable; dye; lasers; solid-state; semiconductor; gaalas; ingaalp; semiconductor laser; energy level; dye laser; pumping laser; tunable dye; dye lasers; upconversion laser; host crystal; /372/

Citation Formats

Nguyen, Dinh C, and Faulkner, George E. Blue-green upconversion laser. United States: N. p., 1990. Web.
Nguyen, Dinh C, & Faulkner, George E. Blue-green upconversion laser. United States.
Nguyen, Dinh C, and Faulkner, George E. Mon . "Blue-green upconversion laser". United States. https://www.osti.gov/servlets/purl/867497.
@article{osti_867497,
title = {Blue-green upconversion laser},
author = {Nguyen, Dinh C and Faulkner, George E},
abstractNote = {A blue-green laser (450-550 nm) uses a host crystal doped with Tm.sup.3+. The Tm.sup.+ is excited through upconversion by a red pumping laser and an IR pumping laser to a state which transitions to a relatively lower energy level through emissions in the blue-green band, e.g., 450.20 nm at 75 K. The exciting laser may be tunable dye lasers or may be solid-state semiconductor laser, e.g., GaAlAs and InGaAlP.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

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