Autor: Legrand, C. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Molecular Dynamics of 4-(trans-4-n-Heptylcyclohexyl)- Isothiocyanatobenzene Studied with Dielectric Relaxation Spectroscopy
Autorzy:: Bauman, D.
Czechowski, G.
Jadżyn, J.
Legrand, C.
Douali, R.
Powiązania:: https://bibliotekanauki.pl/articles/2014055.pdf
Data publikacji:: 2000-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 64.70.Md
77.84.Nh
77.22.Gm
Opis:: Dielectric relaxation study was carried out for the nematic and isotropic phases of 4-(trans-4'-n- heptylcyclohexyl)isothiocyanatobenzene in the frequency range from 100 kHz to 1 GHz. In the nematic phase two relaxation processes were recorded for the electric permittivity component measured parallel to the molecular orientation (director n) and three relaxation processes - for the perpendicular permittivity component. The strength of the nematic potential and the nematic order parameter were estimated.
Źródło:: Acta Physica Polonica A; 2000, 98, 1-2; 71-81
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Scar Selection in an Optical Fibre
Autorzy:: Doya, V.
Legrand, O.
Michel, C.
Mortessagne, F.
Powiązania:: https://bibliotekanauki.pl/articles/2047821.pdf
Data publikacji:: 2007-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 05.45.Mt
42.25.Dd
42.81.-i
Opis:: A multimode optical fiber with a D-shaped cross-section has already been proved to constitute a privileged system to image wave functions of a chaotic system. Nevertheless, diffraction of light at the fiber input precludes the excitation of individual wave functions and particularly the scar modes we want to investigate. We show that a mechanism of scar modes selection can be induced by the introduction of a localized gain.
Źródło:: Acta Physica Polonica A; 2007, 112, 4; 607-617
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Time-Resolved Pump-Probe Diffraction Experiment at SOLEIL Synchrotron: Photoinduced Spin Transition in the Molecular Crystal [TPA Fe(III) TCC] $PF_6$
Autorzy:: Laulhé, C.
Ravy, S.
Fertey, P.
Elkaim, E.
Legrand, F.
Féret, P.
Hollander, Ph.
Hustache, S.
Bordessoule, M.
Ricaud, J.
Collet, E.
Lorenc, M.
Buron-Le Cointe, M.
Cailleau, H.
Tissot, A.
Boillot, M.
Powiązania:: https://bibliotekanauki.pl/articles/1489972.pdf
Data publikacji:: 2012-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.50.Ks
61.05.cp
31.70.Ks
78.47.J-
Opis:: We present the first time-resolved pump-probe experiment performed at synchrotron SOLEIL at the CRISTAL diffraction beamline. The time-resolved setup will be used in the near future for sub-ns time resolution experiments. We studied spin state switching in a [TPA Fe(III) TCC] $PF_6$ single crystal as induced by a ≈6 ns laser pulse (1064 nm), by measuring the 3D diffraction volume of the 002 Bragg reflection as a function of time after excitation. The intensity profiles (rocking curves) are found to evolve at two characteristic timescales, namely hundreds of ns and few μs, exhibiting subtle profile changes and peak broadenings. Consistently with previous studies, we interpret these features as due to structural inhomogeneities related to laser-induced deformation wave propagation and heat diffusion, which both start from the absorbing sites.
Źródło:: Acta Physica Polonica A; 2012, 121, 2; 332-335
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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