Uniform-intensity axicon: A lens coded with a symmetrically cubic phase plate |
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| Authors: | Pu Jixiong Zhang Huihua Nemoto Shojiro |
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| Affiliation: | (1) Department of Physics, Huaqiao University, Quanzhou, Fujian, 362011, P.R. China;(2) Huaqiao University, Quanzhou, Fujian, 362011, P.R. China;(3) Institute of Information Sciences & Electronics, University of Tsukuba, Tsukuba, Ibaraki, 305-8573, Japan |
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| Abstract: | In this paper, an axicon, which is combined a symmetrically cubic phase plate with a perfect lens, is introduced. Based on stationary phase method and the numerical calculation, the diffraction field behind the axicon is investigated. It is shown that, by using this kind of axicons, we can obtain the uniform-intensity focal segment within the desired range. |
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| Keywords: | axicon diffraction cubic phase plate Bessel beam |
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