Controllable splitting and bidirectional rotating of optical vortices due to cross phase

Li, Yuan; Liang, Guo; Hu, Xin

doi:10.1080/09500340.2022.2086714

Cited by 6 publications

(2 citation statements)

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“…The vortex light is widely applied in diverse fields such as super resolution imaging [1,2], optical communication [3,4], and optical measurement [5,6]. Moreover, a number of studies have demonstrated the influence which the orbital angular momentum (OAM) of light imparts on polarizable matter, leading to novel features, for instance, the light-induced torque can be used to control the rotational motion of atoms, molecules and microparticles [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…It can be argued that, as an intrinsic property of vortex light, an exchange should arise between the photon's OAM and the internal 'electric-type' motion, just as the photon spin angular momentum. Unlike works [7][8][9][10] which mainly focus on the interaction between the light * Author to whom any correspondence should be addressed. and the external 'atomic-type' motion, features of angular momentum exchange between the vortex light and the internal 'electric-type' transition has attracted much interest in recent years [11,12].…”

Section: Introductionmentioning

confidence: 99%

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The vortex light induced electric dipole and electric quadru-pole transition in Ca atom

Lu,

Liu,

Feng

et al. 2023

Laser Phys.

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The Laguerre–Gaussian beam induced electric transition model is presented. The major mechanism of angular momentum exchange between the light and the atomic system is discussed. The influence of the topological charge on the transition probability and selection rules is obtained. Our results show that the Ca(4s2 1S0–4s3d 1D2) electric quadrupole transition selection rules are sensitive to the sign of l, and the center of mass transition selection rules are governed by the topological charge l of the light. The electric dipole transition is possible in a field with topological charge l > 0, and the quadrupole transition is no longer forbidden. The overall transition probability difference between dipole transition and quadrupole transition can be decreased by the joint action of the light angular momentum exchange with the external and the internal motion.

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