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Excited state absorption and laser emission from infrared laser dyes optically pumped at 532 nm

Journal Article · · Appl. Phys. Lett., v. 27, no. 11, pp. 607-609
DOI:https://doi.org/10.1063/1.88305· OSTI ID:4135156
Efficient near-infrared dye laser emission has been achieved in the 838-- 923-nm range by use of a frequency-doubled Nd:YAG laser as the optical pump for various polymethine dyes. Experimental evidence of 1064-nm quenching of the dye laser emission is reported. Strong excited state absorption (ESA) effects are observed for the dye IR-140 at the 532-nm pump wavelength. This excited state absorption results in an experimentally determined optimum pump power density of 50 to 60 MW/cm$sup 2$ for maximum dye laser efficiency. Such excited state absorption may thus be a limiting factor in the power scaling of pulsed dye lasers. (AIP)
Research Organization:
GTE Sylvania, Incorporated, Electro-Optics Organization, P. O. Box 188, Mountain View, California 94042
Sponsoring Organization:
USDOE
NSA Number:
NSA-33-009145
OSTI ID:
4135156
Journal Information:
Appl. Phys. Lett., v. 27, no. 11, pp. 607-609, Journal Name: Appl. Phys. Lett., v. 27, no. 11, pp. 607-609; ISSN APPLA
Country of Publication:
United States
Language:
English

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