Abstract
Nitrobenzene is a molecule of polar structure. The strong interaction between polar groups of the molecules introduces considerable effects on molecular vibrations. Coherent anti-Stokes Raman spectroscopy (CARS) was used to study the frequency shifts of vibrational modes of nitrobenzene in liquid-vapor phase change. An experimental setup for simultaneous recording of the CARS spectra in the different states by scanning a single dye laser, which provides the Stokes beams of the liquid and the vapor measuring parts, was established. The second harmonic of a Nd:YAG laser was used as the CARS pump beam and the pumping source of the dye laser. As the intense power (>10 mJ) of the pump beam induced certain change in nitrobenzene vapor and so disturbed the measurement of the spectra, the laser beam must be properly attenuated in our experiments.
© 1984 Optical Society of America
PDF ArticleMore Like This
B. Wellegehausen, K. Ludewigt, and H. Welling
FE1 Conference on Lasers and Electro-Optics (CLEO:S&I) 1984
S. A. Akhmanov, S. M. Gladkov, N. I. Koroteev, V. N. Zadkov, I. L. Shumay, and G. Marowsky
TuGG6 International Quantum Electronics Conference (IQEC) 1984
Sukesh Roy, Terrence R. Meyer, and James R. Gord
MD6 Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2006