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ZHICHAO XIONG1, BO WANG1,* , XIAOQING ZHU1, YUSEN HUANG1, LICHANG LI1, JIAMAN HONG1, YONGCHUN ZHOU1
In this paper, a reflective two-port beam splitter grating with zeroth order suppressed is proposed. Under normal incidence, the finite element method is chosen to optimize the grating parameters, and the results are verified by the rigorous coupled-wave analysis. In this study, the incident light wavelength is chosen as 1.55 μm. The grating reflective efficiency of 0th order is suppressed, and the diffraction efficiencies of ±1st orders attain 48.07% in transverse electric polarization and 47.40% in transverse magnetic polarization. What’s more, the grating has the characteristic of high efficiency in a certain range of incident wavelength.
Two-port, Beam splitter, Reflective grating, Under normal incidence.
ZHICHAO XIONG, BO WANG, XIAOQING ZHU, YUSEN HUANG, LICHANG LI, JIAMAN HONG, YONGCHUN ZHOU, Combining double-layer arrays and metal film for zeroth order suppressing, Optoelectronics and Advanced Materials - Rapid Communications, 16, 5-6, May-June 2022, pp.187-192 (2022).
Submitted at: Nov. 8, 2022
Accepted at: June 6, 2022
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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