PMID- 33379562
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201231
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 28
IP  - 25
DP  - 2020 Dec 7
TI  - Planar multi-angle retro-reflectors based on the wave-vector-reversion of spoof 
      surface plasmon polaritons.
PG  - 37236-37248
LID - 10.1364/OE.411043 [doi]
AB  - Spoof surface plasmon polariton (SSPP) is kind of sub-wavelength electromagnetic 
      (EM) mode, which is favorable for miniaturization and thinning of EM devices. In 
      this paper, we propose a method of designing thin planar retro-reflector that can 
      operate under multiple incidence angles at the same frequency. The 
      retro-reflector is composed of a transmissive phase gradient metasurface (TPGM) 
      placed above a metallic patch array (MPA), where the former couples and decouples 
      SSPPs while the latter supports eigen-mode propagation of SSPPs. Under oblique 
      incident angles, the TGPM can impart 0 and pi Pancharatnam-Berry (P-B) phases 
      alternatively, producing P-B phase gradients along its surface. Incident waves 
      can be coupled as SSPPs propagating on the MPA which will be reflected at the 
      borders of the MPA, thus the wave-vector of SSPPs is reversed. In this way, 
      retro-reflection can be realized under the two incidence angles theta=+/-45.0 degrees . 
      Moreover, due to mode mismatch between the TPGM and MPA under normal incidence, 
      the retro-reflector acts like a planar metallic plate under theta=0 degrees . To verify this 
      method, a prototype was designed, fabricated and measured. Both the simulation 
      and measurement results verify significant backscattering enhancement under 
      theta=+/-45.0 degrees  and 0 degrees  at 10.0 GHz. This work provides an alternative method of 
      designing planar retro-reflectors and may find applications in wireless 
      communication, target tracking, etc.
FAU - Jia, Yuxiang
AU  - Jia Y
FAU - Wang, Jiafu
AU  - Wang J
FAU - Yang, Jie
AU  - Yang J
FAU - Meng, Yueyu
AU  - Meng Y
FAU - Han, Yajuan
AU  - Han Y
FAU - Li, Yongfeng
AU  - Li Y
FAU - Pang, Yongqiang
AU  - Pang Y
FAU - Shen, Yang
AU  - Shen Y
FAU - Fan, Ya
AU  - Fan Y
FAU - Qu, Shaobo
AU  - Qu S
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
SB  - IM
EDAT- 2021/01/01 06:00
MHDA- 2021/01/01 06:01
CRDT- 2020/12/31 01:03
PHST- 2020/12/31 01:03 [entrez]
PHST- 2021/01/01 06:00 [pubmed]
PHST- 2021/01/01 06:01 [medline]
AID - 443945 [pii]
AID - 10.1364/OE.411043 [doi]
PST - ppublish
SO  - Opt Express. 2020 Dec 7;28(25):37236-37248. doi: 10.1364/OE.411043.