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Laser-induced excited state and ultrasonic wave gratings: Amplitude and phase grating contributions to diffraction

Nelson, Keith A., Casalegno, Roger, Miller, R. J. Dwayne, Fayer, M. D.·1982·The Journal of Chemical Physics

Abstract

A detailed analysis of diffraction from laser-induced gratings is presented. The changes which occur in both the real and imaginary parts of the index of refraction are accounted for when excited states are created. These lead to phase and amplitude grating contributions, respectively, to the diffraction from a laser-induced excited state grating. Experimental confirmation of the predicted wavelength dependence of these contributions is presented. Diffraction from laser-induced excited state gratings, ultrasonic wave gratings, and mixed excited state and acoustic gratings is analyzed with the phase and amplitude contributions to each accounted for. The results permit the interpretation of mixed grating data and predict conditions under which density-dependent absorption spectral shifts and excited state-phonon interactions can be measured.

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Metadata

Authors
Nelson, K. A., Casalegno, R., Miller, R. J. D., & Fayer, M. D.
Venue
The Journal of Chemical Physics
Published
1982-08-01
Volume
77
Issue
3
Pages
1144-1152
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W1973377983
Cited by
192
References
0
FWCI
6.66
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Laser-induced excited state and ultrasonic wave gratings: Amplitude and phase grating contributions to diffraction. https://app.cochat.ai/papers/10.1063/1.443979
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Nelson, K. A., Casalegno, R., Miller, R. J. D., & Fayer, M. D. (1982). Laser-induced excited state and ultrasonic wave gratings: Amplitude and phase grating contributions to diffraction. The Journal of Chemical Physics. https://doi.org/10.1063/1.443979

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