作者: Baida Lü , Wenlong Huang , Bin Zhang
DOI: 10.1016/0030-4018(95)00242-Z
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摘要: Abstract The Fraunhofer diffraction of a Bessel beam focused by an aperture lens is studied both theoretically and experimentally. It has been shown that the patterns beams are determined essentially two parameters, namely, Fresnel number N truncation parameter β.