Study of a narrowband reflection filter with multi-channels |
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| Authors: | Hongfei Jiao Tao Ding Xinbin Cheng Bin Ma Pengfei He Yonggang Wu |
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| Affiliation: | [1]Institute of Precision Optical Engineering, Department of Physics, Tongji University, Shanghai 200092, China [2]School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China |
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| Abstract: | Reflection filters have various applications in optical communication and other systems.In this letter,we propose a narrowband high-reflection filter composed of dielectric and metallic layers,in which an optimized filter combined with an admittance-matching layer with broad stop band is achieved.The structure can be expressed as Sub | (HL)13H2L(HL)313Cr0.84H | air,with full-width at half-maximum (FWHM) bandwidth of 2.5 nm.Based on this structure,reflection filters with multi-peaks are presented,and the law of distribution of peak positions is drawn. |
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