DocumentCode :
1095686
Title :
Saturation of resonant third-harmonic generation due to self-defocusing and a redistribution of the population densities
Author :
Scheingraber, Herbert ; Vidal, Carl Rudolf
Author_Institution :
Kristalloptik Laserbau GmbH Am Sulzbogen, Füstenfeldbruk, Germany
Volume :
19
Issue :
12
fYear :
1983
fDate :
12/1/1983 12:00:00 AM
Firstpage :
1747
Lastpage :
1758
Abstract :
Using a high-power excimer laser, pumped dye laser third-harmonic generation in strontium was investigated around several two-photon resonances for input intensities which are well above the onset of saturation. The dominant role of self-defocusing and of the time-dependent redistribution of the population densities is demonstrated. Strong stimulated emission on several transitions branching off from the excited state of the two-photon resonance and several competing parametric processes have been observed. Good agreement is obtained with a theoretical model which accounts for the redistribution of the population densities and which shows the importance of the ac Stark effect for the central structure of the high-intensity conversion profiles.
Keywords :
Dye lasers; Laser-beam focusing; Optical mixers; Optical resonance; Ultraviolet generation; Frequency conversion; Laser excitation; Laser transitions; Nonlinear optics; Nonlinear systems; Optical frequency conversion; Optical harmonic generation; Power lasers; Pump lasers; Resonance;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1983.1071797
Filename :
1071797
Link To Document :
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