Influence of orbital angular momentum of vortex light on lateral shift behavior

被引：2
作者：
Ahmed, Saeed [1 ]
Abbas, Muqaddar [1 ]
Awais, Muhammad [1 ]
Khan, Anwar Ali [2 ]
Uddin, Ziauddin [1 ,3 ]
机构：
[1] COMSATS Univ, Dept Phys, Quantum Opt Lab, Islamabad, Pakistan
[2] Univ Malakand Dir L, Dept Phys, Khyber Pakhtunkhwa, Pakistan
[3] Natl Tsing Hua Univ, Inst Photon & Technol, Hsinchu 300, Taiwan
来源：
JOURNAL OF OPTICS | 2021年 / 23卷 / 11期
关键词：
lateral shift; orbital angular momentum; reflected light beam; GOOS-HANCHEN SHIFTS; TOTAL INTERNAL-REFLECTION; BEAM DISPLACEMENT; HIGH-SENSITIVITY;
D O I：
10.1088/2040-8986/ac16b6
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We suggest a scheme that consists of a cavity with a four-level double ? atomic medium as an intracavity medium. The reflection of an optical vortex light beam field that is incident on a cavity has been investigated by consideration within the coherence theory framework. We study the influence of the orbital angular momentum (OAM) of the vortex light beam on the lateral or Goos-Hanchen shift (GHS) for the reflected beam. It has been investigated that different values of OAM from the incident vortex beam enhanced positive and negative GHS. Also, we consider two fields (including incident) that carry an optical vortex interacting with the cavity. We obtain giant positive and negative GHS via manipulation of the OAM corresponding to the two optical vortex beams. To the best of our knowledge, no one has ever studied such a large GHS in a reflected beam.
引用
收藏
页数：7
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