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YUSEN HUANG1, BO WANG1,* , WEIYI YU1, JIAHAO LI1, XIAOFENG WANG1, HONG ZOU1, JINHAI HUANG1, LIQUN LIU1, GUODING CHEN1, QU WANG1, LIANG LEI1
In this paper, using rigorous coupled-wave analysis, a beam splitter for eliminating 0th order by tantalum oxide ridges grating is proposed. The grating has a thinner structure of tantalum oxide grating ridges. At a normal incident light of λ=1550 nm, the grating can achieve the high efficiencies of the ±1st orders of 48.79%, 48.18% for transverse electric, transverse magnetic polarization and the 0th order of less than 1% for both polarizations. Besides, the grating has not only a good manufacturing tolerance in grating period d and duty cycle f but also a wide spectral bandwidth of 60 nm.
Two-port reflective grating, Beam splitter, Rigorous coupled-wave analysis, Eliminating of the zeroth order.
YUSEN HUANG, BO WANG, WEIYI YU, JIAHAO LI, XIAOFENG WANG, HONG ZOU, JINHAI HUANG, LIQUN LIU, GUODING CHEN, QU WANG, LIANG LEI, Analytical modeling for eliminating the 0th order by a tantalum oxide ridges grating, Optoelectronics and Advanced Materials - Rapid Communications, 17, 3-4, March-April 2023, pp.93-98 (2023).
Submitted at: Aug. 20, 2022
Accepted at: April 7, 2023
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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