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5 November 2010 Diffraction efficiency analysis of blazed grating fabricated by direct laser writing
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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.
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Dengfeng Kuang and Zhiliang Fang "Diffraction efficiency analysis of blazed grating fabricated by direct laser writing", Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 78480P (5 November 2010);

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