Picosecond dye laser emission in the infrared between 1.4 and 1.8 ?m

Autor:	H. J. Polland, K. H. Drexhage, M. Kussler, A. Seilmeier, Wolfgang Kaiser, N. J. Marx, Thomas Elsaesser, B. Sens
Rok vydání:	1983
Předmět:	Dye laser Materials science Physics and Astronomy (miscellaneous) Infrared business.industry General Engineering General Physics and Astronomy Pulse duration Picosecond Excited state Optoelectronics Emission spectrum Stimulated emission business Diffraction grating
Zdroj:	Applied Physics B Photophysics and Laser Chemistry. 32:53-57
ISSN:	1432-0649 0721-7269
DOI:	10.1007/bf00688543
Popis:	The stimulated emission of new infrared dyes was investigated. The dyes have shortS 1-lifetimes between 5 and 12 ps with corresponding low fluorescence quantum efficiencies of 10−3 to 10−4. In spite of this, 2% of the pumping energy were converted to an intense infrared pulse with frequencies between 5550 cm−1 (1.8 μm) and 7150 cm−1 (1.4 μm). The dye solutions were excited by single picosecond pulses of a Nd:glass laser in a travelling wave system consisting of a diffraction grating and a tranversely pumped dye cell. The pulse duration at 6250 cm−1 was measured to be 6 ps.
Databáze:	OpenAIRE
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