Wen-Long Xiong, Hong Zhang, Yi-Hao Wu, Xiao-Qiu Qi, Ai-Xi Chen
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引用次数: 0
Abstract
The coherent transfer of optical vortices in a four-level double-cascade cold atomic ensemble is examined, showcasing the transfer of orbital angular momentum from the incident vortex probe field to the generated signal field through the four-wave mixing process. Results indicate that, without single-photon detuning, the transfer efficiency is limited to 25% under phase matching conditions. However, in the presence of single-photon detuning, the conversion efficiency of optical vortices between the probe and signal fields can be significantly increased. Interestingly, the presence of single-photon detuning can enhance, rather than diminish, the transfer efficiency of optical vortices. Furthermore, the impact of the control field on the composite vortex formed by the incident vortex probe and signal fields was investigated. Findings suggest that adjusting the strength of the control field allows for precise control over the strength and phase patterns of the composite vortex.
期刊介绍：
Features publication of experimental and theoretical investigations in applied physics
Offers invited reviews in addition to regular papers
Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more
94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again
Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field.
In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.
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