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WEIYI YU1, BO WANG1,* , HONG ZOU1, JIAHAO LI1, XIAOFENG WANG1, JINHAI HUANG1, LIQUN LIU1, LINJIAN HUANG1, XU YANG1, GUODING CHEN1, LIANG LEI1, QU WANG1
In this paper, a sandwich structure two-port transmission beam splitter with two-layer array is proposed. By using rigorous coupled-wave analysis and simulated annealing algorithm, the structure and parameters of the grating are analyzed and optimized to achieve high efficiency diffraction and zero order suppression. At normal incidence of 800 nm incident light, the diffraction efficiency of the grating at ±1st transverse magnetic polarization and transverse polarization is 48.83% and 49.12% respectively. In addition, the grating can still maintain high efficiency within the process tolerance range of some parameters (including incident wavelength, duty cycle, incident angle and grating period).
Sandwiched two-layer arrays, Cancellation of zeroth order, Simulated annealing.
WEIYI YU, BO WANG, HONG ZOU, JIAHAO LI, XIAOFENG WANG, JINHAI HUANG, LIQUN LIU, LINJIAN HUANG, XU YANG, GUODING CHEN, LIANG LEI, QU WANG, Output analysis of sandwiched two-layer arrays for cancellation of zeroth order, Optoelectronics and Advanced Materials - Rapid Communications, 17, 5-6, May-June 2023, pp.191-197 (2023).
Submitted at: Nov. 16, 2022
Accepted at: June 6, 2023
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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