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BO WANG1,* , WENHAO SHU1, LI CHEN1, LIANG LEI1, JINYUN ZHOU1
An infrared two output beam splitter is proposed based on the reflective two layer phase grating. The mixed metal dielectric grating can be operated in the reflection region, which is different from the transmission beam splitter grating. Furthermore, the usual duty cycle of 0.5 should facilitate the fabrication compared with the special duty cycle. With the optimized grating parameters, efficiencies of 49.07% together with 49.02% and 48.20% together with 48.22% can be separated into the 1st and the 0th orders for TE and TM polarizations, respectively. Most importantly, wide incident angular bandwidth is exhibited for TM polarization..
Two-layer grating, Two-output splitter, Uniformity.
BO WANG, WENHAO SHU, LI CHEN, LIANG LEI, JINYUN ZHOU, Infrared two output beam splitter based on reflective two layer grating, Optoelectronics and Advanced Materials - Rapid Communications, 8, 9-10, September-October 2014, pp.833-836 (2014).
Submitted at: Nov. 25, 2013
Accepted at: Sept. 11, 2014
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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