The effect of velocity-changing gas-particle collisions on the intensity of the stimulated photon echo response is investigated. The intensity is influenced most by such collisions if the exciting-pulse wave vectors are nonparallel. An approximation of the intensity of the stimulated photon echo response as a function of the time interval between the second and third exciting laser pulses is proposed and enables differentiation of the contribution of velocity-changing particle collisions to attenuation of the response. The results are of interest for optical coherent echo spectroscopy.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 85, No. 6, pp. 891–895, November–December, 2018.
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Ahmedshina, E.N., Nefediev, L.A., Nefedyev, Y.A. et al. Differentiation of the Contribution of Velocity-Changing Gas-Particle Collisions to Attenuation of the Stimulated Photon Echo Response. J Appl Spectrosc 85, 1017–1021 (2019). https://doi.org/10.1007/s10812-019-00750-3
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DOI: https://doi.org/10.1007/s10812-019-00750-3