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2 results on '"Jinqiao Sha"'

2. Flat-top Brewster filter based on guided mode resonance effect

Author

Lina Fan, Jinqiao Sha, Junshan Ma, Kehui Jia, and Zhaoliang Cao

Subjects
Brewster's angle, Materials science, Sideband, Guided-mode resonance, business.industry, Bandwidth (signal processing), Plane wave, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Polarization (waves), 01 natural sciences, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, 010309 optics, symbols.namesake, Wavelength, Optics, 0103 physical sciences, symbols, Brewster, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, 0210 nano-technology, business
Abstract

We have analyzed and discussed a flat-top Brewster filter that works in full conical mounting. Results reveal that flat-top reflection band can be formed by merging double peaks that corresponded to guided modes with different polarization states. Merging is achieved by adjusting the incident angle in the design. When the proposed single-layer waveguide grating structure is irradiated with transverse magnetic (TM) polarized plane wave at the Brewster angle, the filter has a highly efficient flat-top reflection spectral response with central wavelength of 547 nm, bandwidth of 15.5 nm (R > 90%), and sideband reflectance of

Published
2020

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