Propagation of higher-order cosh-Gaussian beams in uniaxial crystals orthogonal to the optical axis
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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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