Spatial-frequency spectrum analysis of the performance of diffractive optical element for beam smoothing

In this paper, based on the spatial-frequency spectrum, the intensity distribution of diffractive optical elements (DOE) for beam smoothing is quantitatively analyzed. Two parameters, with which the performance of the DOE can be reliably evaluated, are re-defined. The performances of the designed DO...

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Bibliographic Details
Published in:Optik (Stuttgart) 2002, Vol.113 (4), p.163-166
Main Authors: Tan, Qiaofeng, He, Qingsheng, Yan, Yingbai, Jin, Guofan, Xu, Duanyi
Format: Article
Language:English
Subjects:
beam smoothing
diffractive optical element
Exact sciences and technology
fine design
Fundamental areas of phenomenology (including applications)
Geometrical optics
Optical elements, devices, and systems
Optics
Physics
Spatial-frequency spectrum
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Summary:In this paper, based on the spatial-frequency spectrum, the intensity distribution of diffractive optical elements (DOE) for beam smoothing is quantitatively analyzed. Two parameters, with which the performance of the DOE can be reliably evaluated, are re-defined. The performances of the designed DOEs for beam smoothing are re-calculated, whether the fine design is adopted or not. The results show that true beam smoothing can be realized with the fine design.
ISSN:0030-4026
1618-1336
DOI:10.1078/0030-4026-00140