Phase contrast Talbot array illuminators

We propose a method for designing an improved phase-only Talbot array illuminator, called a phase contrast Talbot array illuminator (PCTAI), which could be used to generate an array of spots with a special intensity structure and high efficiency. As examples, we designed two types of PCTAIs for gene...

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Bibliographic Details
Published in:Optics letters 2008-04, Vol.33 (8), p.818-820
Main Authors: GUO, Cheng-Shan, LING LI, ZHU, Lin-Wei, WEI, Gong-Xiang, JIANPING DING, WANG, Hui-Tian
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Optical elements, devices, and systems
Optics
Physics
Reflectors, beam splitters, and deflectors
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Summary:We propose a method for designing an improved phase-only Talbot array illuminator, called a phase contrast Talbot array illuminator (PCTAI), which could be used to generate an array of spots with a special intensity structure and high efficiency. As examples, we designed two types of PCTAIs for generating an array of line and hollow spots, respectively. Some experimental results revealing the phase contrast effect and demonstrating the feasibility of the PCTAIs are also given.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.33.000818