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Proceedings Paper

Diffraction efficiency analysis of blazed grating fabricated by direct laser writing
Author(s): Dengfeng Kuang; Zhiliang Fang
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Paper Abstract

For the laser spot size, the blazed diffractive grating fabricated with direct laser writing will has a slantwise lateral facet edge. To evaluate the influence of the slope of the facet edge of blazed diffractive grating, we calculate the diffraction efficiencies in +1 order and zero order as a function of the angle for the slantwise lateral facet edge with rigorous coupled wave analysis. As the lateral facet edge is getting more slantwise, the diffraction efficiency in +1 order decrease more, which degrades the image quality in monochromatic imaging. But the diffraction efficiency in zero order always keeps very low to assure the application in optical limiting.

Paper Details

Date Published: 5 November 2010
PDF: 8 pages
Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 78480P (5 November 2010); doi: 10.1117/12.866240
Show Author Affiliations
Dengfeng Kuang, Nankai Univ. (China)
Zhiliang Fang, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 7848:
Holography, Diffractive Optics, and Applications IV
Yunlong Sheng; Chongxiu Yu; Linsen Chen, Editor(s)

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