Controlled propagation and particle manipulation of off-axis-rotating elliptical Gaussian beams in strong nonlocal media  

作　　者：Rong-Quan Chen Rui-Lin Xiao Wei Wang Xi-Xi Chu Yu-Qing Song Xu-Dong Hu Ming Chen 陈荣泉;肖瑞林;王伟;储茜茜;宋雨晴;胡旭东;陈明

机构地区：[1]Guangxi Key Laboratory of Optoelectronic Information Processing,School of Optoelectronic Engineering,Guilin University of Electronic Technology,Guilin 541004,China [2]School of Physics,Anshan Normal University,Anshan 114007,China

出　　处：《Chinese Physics B》2025年第3期415-422,共8页中国物理B(英文版)

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.62075047);the Natural Science Foundation of Guangxi Zhuang Autonomous Region,China(Grant No.2020GXNSFDA297019)。

摘　　要：Off-axis-rotating elliptical Gaussian beams(Oare GB)oblique incidence in strong nonlocal medium exhibit novel propagation properties.The analytical expressions of semi-axial beam widths,and center-of-mass trajectory equations for transmitting off-axis-rotating elliptical Gaussian beams in strong nonlocal media are obtained using the ABCD transfer matrix method.The study revealed that the trajectory of the mass's center in the cross-section can be controlled by changing the sizes of the Oare GB parameters c,d,ζ,and f.The gradient force of the light field causes the spot region to form a spatial potential well in the media,and this spatial potential well can effectively capture nanoparticles.The particles captured by the light field can move along with the beam,realizing the effective manipulation of the particle trajectory.These laws may be applied to modulating the propagation path of light beams and optical tweezer technology.

关 键 词：nonlinear optics off-axis-rotating elliptical Gaussian beam orbital angular momentum 

分 类 号：O17[理学—数学]