Double-structure, bidirectional and polarization-independent subwavelength grating beam splitter

2012 ◽  
Vol 285 (6) ◽  
pp. 1494-1500 ◽  
Author(s):  
Junbo Yang ◽  
Zhiping Zhou
Keyword(s):  
Beam Splitter ◽  
Subwavelength Grating ◽  
Double Structure ◽  
Polarization Independent

Broadband terahertz polarization beam splitter based on subwavelength grating sandwiched between silica layers

2019 ◽  
Vol 48 (5) ◽  
pp. 520003
Author(s):  
张晔岚 Zhang Yelan ◽  
张 昆 Zhang Kun ◽  
孔伟金 Kong Weijin ◽  
李采彧 Li Caiyu ◽  
夏 峰 Xia Feng ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Polarization Beam Splitter ◽  
Subwavelength Grating ◽  
Silica Layers ◽  
Broadband Terahertz

Investigation on multilayer microstructure grating for three-port splitting

2016 ◽  
Vol 30 (16) ◽  
pp. 1650195
Author(s):  
Wenhao Shu ◽  
Bo Wang ◽  
Hao Pei ◽  
Hongtao Li ◽  
Li Chen ◽  
...  
Keyword(s):  
Beam Splitter ◽  
Single Layer ◽  
Zeroth Order ◽  
First Order ◽  
Transmission Grating ◽  
Dielectric Layers ◽  
Incident Waves ◽  
Reflection Grating ◽  
Independent Property ◽  
Polarization Independent

A new structure of microstructure reflection three-port beam splitter grating is described in this paper. The grating includes two dielectric layers and a metal slab on the substrate, where incident waves are reflected into the zeroth-order and the ± first-order with polarization-independent property. With the optimized grating profile, reflection efficiencies’ ratios between the first-order and the zeroth-order can reach 0.998 and 1.001 for TE and TM polarizations, respectively. Especially, the reflection grating can diffract efficiencies more than 30% into the ± first-order and the zeroth-order with the incident angular bandwidth of −1.9–1.9[Formula: see text] for TM polarization, which can have merits compared with single-layer transmission grating.

Design and fabrication of a polarization-independent two-port beam splitter

2009 ◽  
Vol 48 (29) ◽  
pp. 5636 ◽  
Author(s):  
Jijun Feng ◽  
Changhe Zhou ◽  
Jiangjun Zheng ◽  
Hongchao Cao ◽  
Peng Lv
Keyword(s):  
Beam Splitter ◽  
Polarization Independent
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