中国光学2023，Vol.16Issue(1)：193-201,9.DOI:10.37188/CO.EN.2022-0007
Cosh-Pearcey-Gaussian涡旋光束在单轴晶体中的坡印廷矢量和角动量密度
The poynting vector and angular momentum density of Cosh-Pearcey-Gaussian vortex beams in uniaxial crystals
摘要
Abstract
We investigate a family of Cosh-Pearcey-Gaussian Vortex(CPeGV)beams,obtain the general propagation expressions of a CPeGV beam,and study the longitudinal and transverse Poynting vector and Angular Momentum Density(AMD)when the CPeGV beams propagate in uniaxial crystals.The effects of the cosh modulation parameter,topological charge,and propagation distance on the propagation properties of CPeGV beams are discussed.A larger cosh modulation parameter can lead the energy transfer significantly along the transverse Poynting vector direction.Moreover,we also investigate how the cosh modulation para-meter and topological charge influence the propagation properties in the far-field.A larger cosh modulation parameter can lead AMD to present four-lobe structures rather than their usual parabolic curve.Our investig-ation will provide a better understanding of the state of the CPeGV beams propagating in uniaxial crystals and be useful for applications in information transmission.关键词
Cosh-Pearcey-Gaussian涡旋光束/坡印廷矢量/角动量密度/单轴晶体Key words
Cosh-Pearcey-Gaussian vortex beams/Poynting vector/angular momentum density/uniaxial crystals分类
信息技术与安全科学引用本文复制引用
梁梦婷,程科,舒凌云,廖赛,杨嶒浩,黄宏伟..Cosh-Pearcey-Gaussian涡旋光束在单轴晶体中的坡印廷矢量和角动量密度[J].中国光学,2023,16(1):193-201,9.基金项目
四川省科技计划资助项目(No.23NSFSC1097)Supported by Sichuan Science and Technology Program(No.23NSFSC1097) （No.23NSFSC1097）
