Paper
24 September 1993 Dynamics and structural information of hydrogen-bonded systems investigated by picosecond infrared spectroscopy
Alfred Laubereau, Heinrich Graener
Author Affiliations +
Proceedings Volume 1711, High-Performance Optical Spectrometry; (1993) https://doi.org/10.1117/12.155676
Event: High Performance Optical Spectrometry, 1992, Warsaw, Poland
Abstract
Using infrared double-resonance spectroscopy on the time-scale of picosecon$Is the ultrafast dynamics of hydrogen bonds In condensed matter is directly investigated for the first time. We have developed a two-colour pump-probe technique with independently tunable Intense pump ( iO W/cm2) and weak probing pulses /1/. Within the tuning range of 1.4 - 4 jim novel spectroscopic information Is obtained by the help of temporal (' 3 ps), spectral ( 5 cm1 ) and polarization resolution. New spectral features not accessible for conventional IR spectroscopy are observed, e.g. excited state absorption, induced hot bands and, most important, spectral holes. In this way photophysical (vibrational energy transfer) and IR-photochemical processes are Investigated. Structural information is derived from the separation of inhomogeneous and homogeneous broadening effects of the Infrared bands.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alfred Laubereau and Heinrich Graener "Dynamics and structural information of hydrogen-bonded systems investigated by picosecond infrared spectroscopy", Proc. SPIE 1711, High-Performance Optical Spectrometry, (24 September 1993); https://doi.org/10.1117/12.155676
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KEYWORDS
Infrared spectroscopy

Picosecond phenomena

Infrared radiation

Spectroscopy

Hydrogen

Absorption

Bridges

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