Counterpropagating beams in nematic liquid crystals
Чланак у часопису (Објављена верзија)
,
Optical Society of America
Метаподаци
Приказ свих података о документуАпстракт
The behavior of counterpropagating self-trapped optical beam structures in nematic liquid crystals is investigated. A time-dependent model for the beam propagation and the director reorientation in a nematic liquid crystal is numerically treated in three spatial dimensions and time. We find that the stable vector solitons can only exist in a narrow threshold region of control parameters. Bellow this region the beams diffract, above they self-focus into a series of focal spots. Spatiotemporal instabilities are observed as the input intensity, the propagation distance, and the birefringence are increased. We demonstrate undulation, filamentation, and convective dynamical instabilities of counterpropagating beams. Qualitatively similar behavior as of the copropagating beams is observed, except that it happens at lower values of control parameters.
Кључне речи:
nematic crystal, counterpropagataion, solitary waves, instability, birefringenceИзвор:
Optics Express, 2006, 14Издавач:
- Optics Express
Финансирање / пројекти:
- Нелинеарни динамички феномени у фоторефрактивним срединама, течним кристалима, плазми и двоструко негативним материјалима (RS-MESTD-MPN2006-2010-141031)
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Strinić, A.I AU - Jović, D.M AU - Petrović, M.S AU - Timotijević, Dejan AU - Aleksić, N.B AU - Belić, M.R PY - 2006 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/3024 AB - The behavior of counterpropagating self-trapped optical beam structures in nematic liquid crystals is investigated. A time-dependent model for the beam propagation and the director reorientation in a nematic liquid crystal is numerically treated in three spatial dimensions and time. We find that the stable vector solitons can only exist in a narrow threshold region of control parameters. Bellow this region the beams diffract, above they self-focus into a series of focal spots. Spatiotemporal instabilities are observed as the input intensity, the propagation distance, and the birefringence are increased. We demonstrate undulation, filamentation, and convective dynamical instabilities of counterpropagating beams. Qualitatively similar behavior as of the copropagating beams is observed, except that it happens at lower values of control parameters. PB - Optics Express T2 - Optics Express T1 - Counterpropagating beams in nematic liquid crystals VL - 14 DO - https://doi.org/10.1364/OE.14.012310 ER -
@article{ author = "Strinić, A.I and Jović, D.M and Petrović, M.S and Timotijević, Dejan and Aleksić, N.B and Belić, M.R", year = "2006", abstract = "The behavior of counterpropagating self-trapped optical beam structures in nematic liquid crystals is investigated. A time-dependent model for the beam propagation and the director reorientation in a nematic liquid crystal is numerically treated in three spatial dimensions and time. We find that the stable vector solitons can only exist in a narrow threshold region of control parameters. Bellow this region the beams diffract, above they self-focus into a series of focal spots. Spatiotemporal instabilities are observed as the input intensity, the propagation distance, and the birefringence are increased. We demonstrate undulation, filamentation, and convective dynamical instabilities of counterpropagating beams. Qualitatively similar behavior as of the copropagating beams is observed, except that it happens at lower values of control parameters.", publisher = "Optics Express", journal = "Optics Express", title = "Counterpropagating beams in nematic liquid crystals", volume = "14", doi = "https://doi.org/10.1364/OE.14.012310" }
Strinić, A.I, Jović, D.M, Petrović, M.S, Timotijević, D., Aleksić, N.B,& Belić, M.R. (2006). Counterpropagating beams in nematic liquid crystals. in Optics Express Optics Express., 14. https://doi.org/https://doi.org/10.1364/OE.14.012310
Strinić A, Jović D, Petrović M, Timotijević D, Aleksić N, Belić M. Counterpropagating beams in nematic liquid crystals. in Optics Express. 2006;14. doi:https://doi.org/10.1364/OE.14.012310 .
Strinić, A.I, Jović, D.M, Petrović, M.S, Timotijević, Dejan, Aleksić, N.B, Belić, M.R, "Counterpropagating beams in nematic liquid crystals" in Optics Express, 14 (2006), https://doi.org/https://doi.org/10.1364/OE.14.012310 . .