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Analytic theory of alternate multilayer gratings operating in single-order regime

DOI: 10.1364/OE.25.015987 DOI Help

Authors: Xiaowei Yang (Tongji University) , Igor V. Kozhevnikov (Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics” of Russian Academy of Sciences) , Qiushi Huang (Tongji University) , Hongchang Wang (Diamond Light Source) , Matthew Hand (Diamond Light Source) , Kawal Sawhney (Diamond Light Source) , Zhanshan Wang (Tongji University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Optics Express , VOL 25

State: Published (Approved)
Published: June 2017

Open Access Open Access

Abstract: Using the coupled wave approach (CWA), we introduce the analytical theory for alternate multilayer grating (AMG) operating in the single-order regime, in which only one diffraction order is excited. Differing from previous study analogizing AMG to crystals, we conclude that symmetrical structure, or equal thickness of the two multilayer materials, is not the optimal design for AMG and may result in significant reduction in diffraction efficiency. The peculiarities of AMG compared with other multilayer gratings are analyzed. An influence of multilayer structure materials on diffraction efficiency is considered. The validity conditions of analytical theory are also discussed.

Subject Areas: Physics


Technical Areas: Optics

Added On: 10/07/2017 15:22

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oe-25-14-15987.pdf

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Physics Optics

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