Abstract
Sum-frequency (SF) generation has developed into a convenient tool to investigate molecular layers at interfaces. One commonly associates this nonlinear optical technique with the use of tunable high-power laser sources. In the near IR such sources are easily available; consequently, in almost all studies to date the molecular system is probed through its high-frequency vibrational modes. Radiation in the mid- or far-IR is required to study the lower-frequency modes by SF spectroscopy. Powerful tunable sources in that spectral region are rare and the advances in this area result from the use of a free-electron laser.1,2
© 1999 Optical Society of America
PDF ArticleMore Like This
E. R. Eliel, E. W. M. van der Ham, Q. H. F. Vrehen, R. Braun, B. D. Casson, and C. D. Bain
CMC7 Conference on Lasers and Electro-Optics (CLEO:S&I) 1996
J. H. HUNT, P. GUYOT-SIONNEST, and Y. R. SHEN
WGG1 International Quantum Electronics Conference (IQEC) 1987
JOSEPH MIRAGLIOTTA, R. S. POLIZZOTTI, P. RABINOWITZ, and R. B. HALL
TUDD2 Quantum Electronics and Laser Science Conference (CLEO:FS) 1989