Abstract

Vibrational sum-frequency spectroscopy is a powerful tool for the study of interfaces, but its application has hitherto mainly been limited to static structure. This contribution demonstrates how the considerably improved stability of state-of-the-art lasers and parametric generators can be exploited to study the evolution of interfacial structure continuously for several hours. By sequential wavelength tuning and automated control of spatial beam overlap at the target, amplitude changes of sum-frequency resonances in widely spaced infrared regions can be probed. This offers great advantages for the study of the synchronism of molecular processes at interfaces.

Ultra-broadband sum-frequency vibrational spectrometer of aqueous interfaces based on a non-collinear optical parametric amplifier

Oleksandr Isaienko and Eric Borguet
Opt. Express 20(1) 547-561 (2012)

Polarization-multiplexed vibrational sum frequency generation for comprehensive simultaneous characterization of interfaces

Timothy C. Anglin and Aaron M. Massari
Opt. Lett. 37(10) 1754-1756 (2012)

Vibrational sum frequency generation spectroscopy using inverted visible pulses

Champika Weeraman, Steven A. Mitchell, Rune Lausten, Linda J. Johnston, and Albert Stolow
Opt. Express 18(11) 11483-11494 (2010)

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Yarjing J. Yang, Rebecca L. Pizzolatto, and Marie C. Messmer
J. Opt. Soc. Am. B 17(4) 638-645 (2000)

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Opt. Lett. 24(24) 1877-1879 (1999)