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Quasi-Continuous Generation of 211-nm Excitation for Resonance Raman Spectroscopy

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We demonstrate the generation of 211-nm radiation using sum frequency mixing of the second and third harmonics of a cw mode-locked Nd: YLF laser operating at 76 MHz as an excitation source for resonance Raman spectroscopy. Owing to the relatively low peak power (~4 W) but high average power (~8m W), we obtain good-quality spectra with relatively short collection times. In order to demonstrate the utility of this source, we have obtained the Raman spectra of several biological molecules and an inorganic molecule, ruthenium trisbipyridine, using 211-nm excitation.

Keywords: Picosecond lasers; Resonance Raman spectroscopy; Ultraviolet excitation

Document Type: Research Article


Affiliations: 1: Department of Chemistry, The Ohio State University, 120 W. 18th Ave., Columbus, Ohio 43210-1173, U.S.A. 2: Physical Chemistry Laboratory, Toray Research Center, Inc., 3-7 Sonoyama 3 Chome Otsu, Shiga 520, Japan

Publication date: April 1, 1994

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