摘要
The perfect hybrid vector vortex beam(PHVVB)with helical phase wavefront structure has aroused significant concern in recent years,as its beam waist does not expand with the topological charge(TC).In this work,we investigate the spatial quantum coherent modulation effect with PHVVB based on the atomic medium,and we observe the absorption characteristic of the PHVVB with different TCs under variant magnetic fields.We find that the transmission spectrum linewidth of PHVVB can be effectively maintained regardless of the TC.Still,the width of transmission peaks increases slightly as the beam size expands in hot atomic vapor.This distinctive quantum coherence phenomenon,demonstrated by the interaction of an atomic medium with a hybrid vector-structured beam,might be anticipated to open up new opportunities for quantum coherence modulation and accurate magnetic field measurement.
作者
马燕
杨欣
常虹
杨鑫琪
曹明涛
张晓斐
高宏
董瑞芳
张首刚
Yan Ma;Xin Yang;Hong Chang;Xin-Qi Yang;Ming-Tao Cao;Xiao-Fei Zhang;Hong Gao;Rui-Fang Dong;Shou-Gang Zhang(Key Laboratory of Time Reference and Applications,National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China;Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter,Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices,School of Science,Xi’an Jiaotong University,Xi’an 710049,China;Department of Physics,Shaanxi University of Science and Technology,Xi’an 710021,China;Hefei National Laboratory,Hefei 230088,China)
基金
Project supported by the Youth Innovation Promotion Association CAS
State Key Laboratory of Transient Optics and Photonics Open Topics (Grant No. SKLST202222)