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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 3+] 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. 3 figs.

Inventors:
;
Publication Date:
OSTI Identifier:
7068389
Patent Number(s):
US 4949348; A
Application Number:
PPN: US 7-398585
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Patent File Date: 25 Aug 1989
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; SOLID STATE LASERS; EXCITATION; LASER MATERIALS; LASER RADIATION; THULIUM IONS; VISIBLE RADIATION; WAVELENGTHS; CHARGED PARTICLES; ELECTROMAGNETIC RADIATION; ENERGY-LEVEL TRANSITIONS; IONS; LASERS; MATERIALS; RADIATIONS; 426002* - Engineering- Lasers & Masers- (1990-)

Citation Formats

Nguyen, D C, and Faulkner, G E. Blue-green upconversion laser. United States: N. p., 1990. Web.
Nguyen, D C, & Faulkner, G E. Blue-green upconversion laser. United States.
Nguyen, D C, and Faulkner, G E. 1990. "Blue-green upconversion laser". United States.
@article{osti_7068389,
title = {Blue-green upconversion laser},
author = {Nguyen, D C and Faulkner, G E},
abstractNote = {A blue-green laser (450--550 nm) uses a host crystal doped with Tm[sup 3+]. The Tm[sup 3+] 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. 3 figs.},
doi = {},
url = {https://www.osti.gov/biblio/7068389}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 14 00:00:00 EDT 1990},
month = {Tue Aug 14 00:00:00 EDT 1990}
}