Metasurface-enabled broadband beam splitters integrated with quarter-wave plate functionality

Nanoscale ◽  
2020 ◽  
Vol 12 (26) ◽  
pp. 14106-14111 ◽  
Author(s):  
Fei Ding ◽  
Rucha Deshpande ◽  
Chao Meng ◽  
Sergey I. Bozhevolnyi
Keyword(s):  
Linear Polarization ◽  
Quarter Wave Plate ◽  
Power Splitting ◽  
Polarization Conversion ◽  
Beam Splitters ◽  
Wave Plate ◽  
Quarter Wave

Metasurface-enabled broadband beam splitters integrated with quarter-wave plate functionality for simultaneous power splitting and circular-to-linear polarization conversion have been demonstrated.

scholarly journals Active Control of the THz Wave Polarization State by an Electronically Controlled Graphene Composite Metasurface

2021 ◽  
Vol 9 ◽  
Author(s):  
Guocui Wang ◽  
Bin Hu ◽  
Muhammad Ismail Khan ◽  
Yan Zhang
Keyword(s):  
Circular Polarization ◽  
Linear Polarization ◽  
Chemical Potential ◽  
Polarization State ◽  
Quarter Wave Plate ◽  
Wave Polarization ◽  
Elliptical Polarization ◽  
Wave Plate ◽  
Thz Wave ◽  
Quarter Wave

Active control of terahertz (THz) wave polarization state is of great significance for sensitive detection, imaging and communication. Here, a tunable THz quarter wave plate is designed by electronically controlling a composite metasurface consisting of the gold cross antennas and a monolayer graphene. The graphene composite metasurface acts as a quarter-wave plate when the chemical potential of graphene is 0 eV, by which the polarization state of the incident THz wave is converted from linear polarization to circular polarization. After the chemical potential of graphene is increased gradually, and to 0.5 eV, the transmitted polarization state of the THz wave is changed from right circular polarization to right elliptical polarization, and to linear polarization. Furthermore, the polarization state of the THz wave is able to be changed from left circular polarization to left elliptical polarization, and to linear polarization if the device is clockwise rotated by 90°. Therefore, the polarization state of THz wave could be actively controlled by the proposed tunable THz quarter wave plate. Our work will offer a new avenue for tunable THz polarization modulation devices.

scholarly journals None sharp corner localized surface plasmons resonance based ultrathin metasurface single layer quarter wave plate

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Qinyu Qian ◽  
Pengfei Liu ◽  
Li Fan ◽  
Liang Zhao ◽  
Chinhua Wang
Keyword(s):  
Surface Plasmons ◽  
Amplitude Ratio ◽  
Single Layer ◽  
Quarter Wave Plate ◽  
Localized Surface Plasmons ◽  
Sharp Corner ◽  
Wave Plate ◽  
Nanophotonic Devices ◽  
Elliptical Ring ◽  
Quarter Wave

AbstractWe report on a non-sharp-corner quarter wave plate (NCQW) within the single layer of only 8 nm thickness structured by the Ag hollow elliptical ring array, where the strong localized surface plasmons (LSP) resonances are excited. By manipulating the parameters of the hollow elliptical ring, the transmitted amplitude and phase of the two orthogonal components are well controlled. The phase difference of π/2 and amplitude ratio of 1 is realized simultaneously at the wavelength of 834 nm with the transmission of 0.46. The proposed NCQW also works well in an ultrawide wavelength band of 110 nm, which suggests an efficient way of exciting LSP resonances and designing wave plates, and provides a great potential for advanced nanophotonic devices and integrated photonic systems.

scholarly journals Switchable Ultrathin Quarter-wave Plate in Terahertz Using Active Phase-change Metasurface

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Dacheng Wang ◽  
Lingchao Zhang ◽  
Yinghong Gu ◽  
M. Q. Mehmood ◽  
Yandong Gong ◽  
...  
Keyword(s):  
Phase Change ◽  
Active Phase ◽  
Quarter Wave Plate ◽  
Wave Plate ◽  
Quarter Wave

Quarter-wave plate tunable in a wide wavelength range

1995 ◽  
Vol 25 (2) ◽  
pp. 187-190 ◽  
Author(s):  
I V Gol'tser ◽  
M Ya Darsht ◽  
Boris Ya Zel'dovich ◽  
N D Kundikova ◽  
L F Rogacheva
Keyword(s):  
Wavelength Range ◽  
Quarter Wave Plate ◽  
Wave Plate ◽  
Wide Wavelength Range ◽  
Quarter Wave

Full polarization states modulating via an ultra-thin quarter-wave plate

2021 ◽  
Vol 75 (3) ◽  
Author(s):  
Shiyi Xing ◽  
Xiongjun Shang ◽  
Hairong He ◽  
Qian He ◽  
Tong Li ◽  
...  
Keyword(s):  
Quarter Wave Plate ◽  
Wave Plate ◽  
Quarter Wave ◽  
Polarization States

Real-time measurement of the fast axis angle of a quarter-wave plate based on simultaneous phase shifting technique

2008 ◽  
Vol 6 (8) ◽  
pp. 568-571 ◽  
Author(s):  
杨坤 Kun Yang ◽  
曾爱军 Aijun Zeng ◽  
王向朝 Xiangzhao Wang ◽  
王华 Hua Wang ◽  
唐锋 Feng Tang
Keyword(s):  
Real Time ◽  
Time Measurement ◽  
Phase Shifting ◽  
Quarter Wave Plate ◽  
Wave Plate ◽  
Fast Axis ◽  
Real Time Measurement ◽  
Phase Shifting Technique ◽  
Quarter Wave
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