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Double diffractive optical element system for near-field shaping

✍ Scribed by Herrera-Fernandez, Jose Maria ;Sanchez-Brea, Luis Miguel

Book ID
115356825
Publisher
The Optical Society
Year
2011
Tongue
English
Weight
864 KB
Volume
50
Category
Article
ISSN
1559-128X

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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