Comparing efficiency and accuracy of the kinoform and the helical axicon as Bessel-Gauss beam generators

被引:12
作者
Arrizon, Victor [1 ]
Ruiz, Ulises [1 ]
Aguirre-Olivas, Dilia [1 ]
Sanchez-de-la-Llave, David [1 ]
Ostrovsky, Andrey S. [2 ]
机构
[1] Inst Nacl Astrofis Opt & Electr, Puebla 72000, Mexico
[2] Benemerita Univ Autonoma Puebla, Fac Ciencias Fis Matemat, Puebla 72000, Mexico
关键词
DIFFRACTION; TWEEZERS;
D O I
10.1364/JOSAA.31.000487
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We compare two phase optical elements that are employed to generate approximate Bessel-Gauss beams of arbitrary order. These elements are the helical axicon (HA) and the kinoform of the desired Bessel-Gauss beam. The HA generates a Bessel beam (BB) by free propagation, and the kinoform is employed in a Fourier spatial filtering optical setup. As the main result, it is obtained that the error in the BBs generated with the kinoform is smaller than the error in the beams obtained with the HA. On the other hand, it is obtained that the efficiencies of the methods are approximately 1.0 (HA) and 0.7 (kinoform). (C) 2014 Optical Society of America
引用
收藏
页码:487 / 492
页数:6
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