Geodesic
About Optical Control on Anisotropy of the Molecules in a Liquid: Orientational Anisotropy
Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Kazanskii Gosudarstvennyi Universitet. Uchenye Zapiski. Seriya Fiziko-Matematichaskie Nauki, Tome 150 (2008) no. 2, pp. 228-233 Cet article a éte moissonné depuis la source Math-Net.Ru

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The control on the orientational anisotropy of molecules in pure N,N-dimethylformamide at room temperature is demonstrated experimentally. To accomplish the optical control, the medium is non-resonantly excited with two successive linearly polarized laser pulses with a duration of 60 fs. The state of transient anisotropy is probed with the third pulse with the help of registering ultrafast optical Kerr effect using optical heterodyne technique and lock-in detector. The variations in the two parameters, the delay time between two pump pulses and the polarization angle between the directions of the pump pulses, are shown to ensure the control on the orientational anisotropy of the molecules in the subpicosecond region.
Keywords: femtosecond spectroscopy, time-resolved spectroscopy, optical Kerr effect, control on orientational anisotropy, selective spectroscopy.
Mots-clés : N,N-dimethylformamide 
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     author = {A. G. Shmelev and A. V. Leont'ev and V. G. Nikiforov and G. M. Safiullin and V. S. Lobkov},
     title = {About {Optical} {Control} on {Anisotropy} of the {Molecules} in {a~Liquid:} {Orientational} {Anisotropy}},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {228--233},
     year = {2008},
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A. G. Shmelev; A. V. Leont'ev; V. G. Nikiforov; G. M. Safiullin; V. S. Lobkov. About Optical Control on Anisotropy of the Molecules in a Liquid: Orientational Anisotropy. Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Kazanskii Gosudarstvennyi Universitet. Uchenye Zapiski. Seriya Fiziko-Matematichaskie Nauki, Tome 150 (2008) no. 2, pp. 228-233. http://geodesic.mathdoc.fr/item/UZKU_2008_150_2_a32/

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