Autor: Belić, I. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Beam Propagation in Nematic Liquid Crystals
Autorzy:: Strinic, A. I.
Belic, M. M.
Powiązania:: https://bibliotekanauki.pl/articles/2047844.pdf
Data publikacji:: 2007-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.65.Tg
42.65.Sf
42.70.Df
Opis:: We investigate the behavior of beams propagating in nematic liquid crystals. A spatiotemporal model for the beam propagation and the director reorientation in a nematic liquid crystal is treated numerically in three spatial dimensions and time. We demonstrate the formation of stable solitons in a narrow threshold region of beam intensities for a set of fixed parameters and display soliton breathing. Below the threshold region the beams diffract, above the region spatiotemporal instabilities are observed, as the input intensity and the optical and static permittivity anisotropies of the liquid crystal molecules are increased. We demonstrate the filamentation of solitons above the threshold with increasing input intensity.
Źródło:: Acta Physica Polonica A; 2007, 112, 5; 877-883
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Counterpropagating Dipole Beams in Nematic Liquid Crystals
Autorzy:: Strinic, A. I.
Jovic, D. M.
Belic, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/2047845.pdf
Data publikacji:: 2007-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.65.Tg
42.65.Sf
42.70.Df
Opis:: We investigate the behavior of counterpropagating optical beam structures in nematic liquid crystals. We restrict our attention to the dipole-dipole beam arrangements. A time-dependent model for the beam propagation and the director reorientation in nematic liquid crystals is numerically treated in three spatial dimensions and time. Stable dipole beams are observed in a very narrow threshold region of control parameters. Below this region the beams diffract, above the region spatiotemporal instabilities are observed, as the input intensity is increased and also as the distance between the dipole partners is decreased. A transverse beam displacement of counterpropagating dipole beams is also found. The difference between the in-phase and out-of-phase components of the dipole is significant, but only for a smaller distance between the dipole partners.
Źródło:: Acta Physica Polonica A; 2007, 112, 5; 885-890
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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