Analysis of diffraction characteristics of blazed gratings

FAN Shu-wei; ZHOU Qing-hua

doi:10.3969/j.issn.1001-3806.2010.01.012

In order to study the diffraction characteristics of blazed gratings and analyze the influence of grating parameters on diffraction efficiency, the dependence of diffraction efficiency on the different grating structure parameters and wavelengths was obtained based on the rigorous coupled-wave electromagnetic theory. Calculation results showed that the larger the slot angle, the smaller the blazed angle and the diffraction efficiency, and the bigger the wavelength, the smaller the diffraction efficiency and the bigger the blazed angle. Finally,the polarization phenomenon of a blazed grating was analyzed. The obtained results are helpful for the grating design.

Analysis of diffraction characteristics of blazed gratings

1. School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received Date: 2008-11-06

Accepted Date: 2008-12-11

Available Online: 2010-01-25

Abstract: In order to study the diffraction characteristics of blazed gratings and analyze the influence of grating parameters on diffraction efficiency, the dependence of diffraction efficiency on the different grating structure parameters and wavelengths was obtained based on the rigorous coupled-wave electromagnetic theory. Calculation results showed that the larger the slot angle, the smaller the blazed angle and the diffraction efficiency, and the bigger the wavelength, the smaller the diffraction efficiency and the bigger the blazed angle. Finally,the polarization phenomenon of a blazed grating was analyzed. The obtained results are helpful for the grating design.

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Reference (13)

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Analysis of diffraction characteristics of blazed gratings

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