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Test of an optical parametric oscillator -OPO- as a compact and fast tunable stokes source in coherent anti-stokes raman spectroscopy -CARS-

: Brüggemann, D.; Hertzberg, J.; Wies, B.; Waschke, Y.; Noll, R.; Knoche, K.-F.; Herziger, G.

Postprint (PDF; )

Applied Physics. B 55 (1992), S.378-380 : Abb.,Lit.
ISSN: 0340-3793
ISSN: 0721-7269
ISSN: 0946-2171
ISSN: 1432-0649
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer ILT ()
accuracy; bandwidth; beta-barium borate; broadband; calibration; instantaneous; nitrogen; raman spectroscopy

An optical parametric oscillator (OPO), as a novel kind of broadband Stokes source, is employed for coherent anti-Stokes Raman spectroscopy (CARS). Compared to the conventional dye laser configuration OPO-CARS offers practical advantages. The tunable OPO allows a fast and comfortable frequency tuning. The excitation bandwidth of about 35 cmhigh-1 (FWHM) limits the spectral range of effective and stable single pulse CARS generation but can be used to enhance selected spectral structures.