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Transformation of a hollow Gaussian beam into a ring-shaped beam using a phase aperture

✍ Scribed by Lu, Shi-Zhuan; You, Kai-Ming; Chen, Lie-Zun; Wang, You-Wen; Zhang, Deng-Yu

Book ID
122485078
Publisher
Elsevier Science
Year
2013
Tongue
English
Weight
721 KB
Volume
124
Category
Article
ISSN
0030-4026

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To convert a given single-mode HeΒ±Ne laser beam into a ring-shaped intensity distribution, a diractive optical element with 16 levels was designed by YG amplitude-phase retrieval and iteration algorithm. This beam shaper is investigated experimentally and compared with the results of the computer de