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Optical-trapping of a red Bessel beam controlled by co-propagating green Gaussian beam in azobenzene liquid crystal
Journal of Nonlinear Optical Physics & Materials ( IF 2.7 ) Pub Date : 2019-08-30 , DOI: 10.1142/s0218863519500176
Tigran Dadalyan 1 , Lusine Tsarukyan 1 , Rafael Drampyan 1
Affiliation  

Simultaneous co-propagation of red nondiffracting Bessel beam and green Gaussian beam at milliwatt powers in a photosensitive azobenzene liquid crystal has been studied. The fine displacement of the narrow-width Gaussian beam relative to the Bessel beam central maximum showed the Bessel beam distortion and controlled bending of its core in the direction opposite to the location of green Gaussian beam. After switching off the green beam, the dynamics of restoration of Bessel beam demonstrated the pronounced optical-trapping feature of its central core and transient soliton-like propagation with reduced diameter and increased intensity and propagation depth thus forming a waveguiding channel.

中文翻译:

共传播绿色高斯光束控制的红色贝塞尔光束在偶氮苯液晶中的光学俘获

研究了红色非衍射贝塞尔光束和绿色高斯光束在毫瓦功率下在光敏偶氮苯液晶中的同时共传播。窄宽度高斯光束相对于贝塞尔光束中心最大值的精细位移表明贝塞尔光束畸变和其核心在与绿色高斯光束位置相反的方向上的受控弯曲。关闭绿色光束后,贝塞尔光束的恢复动力学表现出其中心核心的明显光学捕获特性和瞬态孤子状传播,直径减小,强度和传播深度增加,从而形成波导通道。
更新日期:2019-08-30
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