Spin-orbit Rabi oscillations in optically synthesized magnetic fields

Guohua Liu; Xiliang Zhang; Xin Zhang; Yanwen Hu; Zhen Li; Zhenqiang Chen; Shenhe Fu

doi:10.1038/s41377-023-01238-8

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Spin-orbit Rabi oscillations in optically synthesized magnetic fields

Original Articles

- Spin-orbit Rabi oscillations in optically synthesized magnetic fields
- Light: Science & Applications Vol. 12, Issue 9, Pages: 1930-1942(2023)
- Affiliations：
  
  1.Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
  2.Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou 510632, China
  3.Guangdong Provincial Engineering Research Center of Crystal and Laser Technology, Guangzhou 510632, China
- Author bio：
  
  Zhen Li (ailz268@126.com)
  Shenhe Fu (fushenhe@jnu.edu.cn)
- Funds：
- DOI：10.1038/s41377-023-01238-8
  CLC：
- Published：30 September 2023，
  
  Published Online：28 August 2023，
  
  Received：26 January 2023，
  
  Revised：05 July 2023，
  
  Accepted：12 July 2023
- Accepted：
Scan QR Code
Liu, G. H. et al. Spin-orbit Rabi oscillations in optically synthesized magnetic fields. Light: Science & Applications, 12, 1930-1942 (2023).
DOI：

Liu, G. H. et al. Spin-orbit Rabi oscillations in optically synthesized magnetic fields. Light: Science & Applications, 12, 1930-1942 (2023). DOI： 10.1038/s41377-023-01238-8.

摘要

Abstract

Rabi oscillation has been proven to be one of the cornerstones of quantum mechanics

triggering substantial investigations in different disciplines and various important applications both in the classical and quantum regimes. So far

two independent classes of wave states in the Rabi oscillations have been revealed as spin waves and orbital waves

while a Rabi wave state simultaneously merging the spin and orbital angular momentum has remained elusive. Here we report on the experimental and theoretical observation and control of spin–orbit-coupled Rabi oscillations in the higher-order regime of light. We constitute a pseudo spin-1/2 formalism and optically synthesize a magnetization vector through light-crystal interaction. We observe simultaneous oscillations of these ingredients in weak and strong coupling regimes

which are effectively controlled by a beam-dependent synthetic magnetic field. We introduce an electrically tunable platform

allowing fine control of transition between different oscillatory modes

resulting in an emission of orbital-angular-momentum beams with tunable topological structures. Our results constitute a general framework to explore spin–orbit couplings in the higher-order regime

offering routes to manipulating the spin and orbital angular momentum in three and four dimensions. The close analogy with the Pauli equation in quantum mechanics

nonlinear optics

etc.

implies that the demonstrated concept can be readily generalized to different disciplines.

关键词

Keywords

references

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