Strinić A, Timotijević D, Arsenović D, Petrović M, Belić M
Opt Express. 2005 Jan 24;13(2):493-504. doi: 10.1364/opex.13.000493.
We investigate numerically the propagation of self-trapped optical beams in nematic liquid crystals. Our analysis includes both spatial and temporal behavior. We display the formation of stable solitons in a narrow threshold region of beam intensities for fixed birefringence, and depict their spatiotemporal instabilities as the input intensity and the birefringence are increased. We demonstrate the breathing and filamentation of solitons above the threshold with increasing input intensity, and discover a convective instability with increasing birefringence. We consider the propagation of complex beam structures in nematic liquid crystals, such as dipoles, beam arrays, and vortices.
我们对向列型液晶中自陷光束的传播进行了数值研究。我们的分析包括空间和时间行为。对于固定的双折射，我们展示了在光束强度的狭窄阈值区域内稳定孤子的形成，并描述了随着输入强度和双折射的增加它们的时空不稳定性。我们证明了在阈值以上随着输入强度增加孤子的呼吸和丝状化现象，并且发现随着双折射增加存在对流不稳定性。我们考虑了向列型液晶中复杂光束结构的传播，如偶极子、光束阵列和涡旋。
