Propagation of higher-order cosh-Gaussian beams in uniaxial crystals orthogonal to the optical axis |
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Authors: | J Li Y Chen Y Xin and S Xu |
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Institution: | 1.Department of Optical Engineering,Nanjing University of Science and Technology,Nanjing,Jiangsu, P.R. China |
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Abstract: | Propagation properties of higher-order cosh-Gaussian (HOCG) beams in uniaxial crystals orthogonal to the optical axis are
studied. Analytical formulae for electric fields and kurtosis parameters are derived. Results show that a HOCG beam with larger
acentric
parameters or beam orders would better preserve its intensity profile when it propagates in uniaxial crystals. At arbitrary
propagation
distance flat-topped beams can be shaped by selecting appropriate acentric parameters. It is also indicated that kurtosis
parameters
τx and τy both increase when acentric parameters take larger values, however, they show different behaviors due to
effects of anisotropic crystals. |
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Keywords: | |
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