Pyrromethene-BF{sub 2} laser dyes
- Naval Command, Control and Ocean Surveillance Center, San Diego, CA (United States)
- Univ. of New Orleans, LA (United States). Chemistry Dept.
The pyrromethene-BF{sub 2} (P-BF{sub 2}) complexes, are a new class of efficient laser dyes, that exhibit laser action from the green to the red spectral region. Some of these dyes out perform commercially available dyes, showing laser action in the same spectral region. The authors therefore are presenting experimental data on laser action efficiency under flashlamp, cw laser, and synchronously pumping of some typical P-BF{sub 2} laser dyes. The main reason for the improved performance of the new laser dyes is reduced triplet state absorption over the fluorescence spectral region of the triplet state P-BF{sub 2} molecules. Triplet state losses in laser dyes are briefly reviewed. Some general criteria for obtaining improved laser dyes are discussed. Because of the long triplet state the P-BF{sub 2} molecules in solution, these lifetime {tau}{sub T} of the P-BF{sub 2} molecules in solution, these dyes do not yet exhibit maximum laser a ion efficiencies under flash lamp excitation.
- OSTI ID:
- 51831
- Report Number(s):
- CONF-940142-; ISBN 0-8194-1408-5; TRN: IM9524%%299
- Resource Relation:
- Conference: OE/LASE `94: conference on optics, electro-optics, and laser applications in science and engineering, Los Angeles, CA (United States), 22-29 Jan 1994; Other Information: PBD: 1994; Related Information: Is Part Of Visible and UV lasers. SPIE Volume 2115; Scheps, R. [ed.]; PB: 293 p.
- Country of Publication:
- United States
- Language:
- English
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