Simplified setup for high-resolution spectroscopy that uses ultrashort pulses
Optics Letters, Vol. 28, Issue 5, pp. 361-363 (2003)
http://dx.doi.org/10.1364/OL.28.000361
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Abstract
Using a broadband femtosecond laser and a simple optical setup, we demonstrate narrow-bandwidth-tunable excitation of vibrational modes in CCl4 and CHBr3 liquids. The resolution obtained is 80 times higher than the laser bandwidth. A pair of time-shifted, linearly chirped pulses is created by use of a high-order dispersion-compensated prism–interferometer setup. We use this pulse pair to selectively excite Raman-active transitions. Our setup represents a significant simplification with improved resolution, of previous approaches to the use of ultrashort pulses for chemically selective spectroscopy.
© 2003 Optical Society of America
OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(300.0300) Spectroscopy : Spectroscopy
(320.0320) Ultrafast optics : Ultrafast optics
Citation
E. Gershgoren, R. A. Bartels, J. T. Fourkas, *R. Tobey, M. M. Murnane, and H. C. Kapteyn, "Simplified setup for high-resolution spectroscopy that uses ultrashort pulses," Opt. Lett. 28, 361-363 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-5-361
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