A multi-functional polarization convertor based on chiral metamaterial for terahertz waves

2019 ◽  
Vol 435 ◽  
pp. 178-182 ◽  
Author(s):  
Zhengze Cheng ◽  
Yongzhi Cheng
Keyword(s):  
Terahertz Waves ◽  
Functional Polarization ◽  
Polarization Convertor ◽  
Chiral Metamaterial

scholarly journals Dual-band dichroic asymmetric transmission of linearly polarized waves in terahertz chiral metamaterial

Nanophotonics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 3235-3242 ◽  
Author(s):  
Tingting Lv ◽  
Xieyu Chen ◽  
Guohua Dong ◽  
Meng Liu ◽  
Dongming Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Light Propagation ◽  
Polarization State ◽  
Dual Band ◽  
Terahertz Waves ◽  
Asymmetric Transmission ◽  
Polarized Waves ◽  
Wide Range ◽  
Linearly Polarized ◽  
Chiral Metamaterial

AbstractPolarization conversion dichroism is of particular interest in manipulating the polarization state of light, whereas high-performance asymmetric transmission (AT) of linearly polarized waves is still inaccessible in the terahertz range. Here, a bilayer chiral metamaterial consisting of orthogonally chained S-shaped patterns with broken symmetry along the light propagation direction is proposed and demonstrated experimentally to realize a dual-band dichroic AT effect for linearly polarized terahertz waves. The AT effects are robust across a wide range of incident angles. The observed strong AT can be theoretically explained by a multiple reflection and transmission interference model and the transfer matrix method. The proposed bilayer chiral metamaterial may have broad applications in polarization manipulation, chiral biosensing and direction-dependent information processing.

Frequency dependent multi-functional polarization convertor based on metasurface

2019 ◽  
Vol 449 ◽  
pp. 8-12 ◽  
Author(s):  
Xiong-Jun Shang ◽  
Hai-Rong He ◽  
Hui Yang ◽  
Qian He ◽  
Ling-Ling Wang
Keyword(s):  
Frequency Dependent ◽  
Functional Polarization ◽  
Polarization Convertor

Ultrabroadband reflective polarization convertor for terahertz waves

2014 ◽  
Vol 105 (18) ◽  
pp. 181111 ◽  
Author(s):  
Yong Zhi Cheng ◽  
Withawat Withayachumnankul ◽  
Aditi Upadhyay ◽  
Daniel Headland ◽  
Yan Nie ◽  
...  
Keyword(s):  
Terahertz Waves ◽  
Polarization Convertor

Complementary Y-shaped chiral metamaterial with giant optical activity and circular dichroism simultaneously for terahertz waves

2016 ◽  
Vol 63 (17) ◽  
pp. 1675-1680 ◽  
Author(s):  
Yong Zhi Cheng ◽  
Yong Li Yang ◽  
Yu Jie Zhou ◽  
Zhe Zhang ◽  
Xue Song Mao ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Optical Activity ◽  
Terahertz Waves ◽  
Circular Dichroïsm ◽  
Chiral Metamaterial

Surface Roughness Measurement of Thermal Barrier Coating using Terahertz Waves

2017 ◽  
Vol 137 (3) ◽  
pp. 147-152 ◽  
Author(s):  
Tetsuo Fukuchi ◽  
Norikazu Fuse ◽  
Mitsutoshi Okada ◽  
Tomoharu Fujii ◽  
Maya Mizuno ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Thermal Barrier Coating ◽  
Thermal Barrier ◽  
Roughness Measurement ◽  
Terahertz Waves ◽  
Surface Roughness Measurement ◽  
Barrier Coating

Nondestructive Testing using Terahertz Waves

2015 ◽  
Vol 135 (11) ◽  
pp. 647-650 ◽  
Author(s):  
Tetsuo Fukuchi ◽  
Norikazu Fuse ◽  
Maya Mizuno ◽  
Kaori Fukunaga
Keyword(s):  
Nondestructive Testing ◽  
Terahertz Waves

scholarly journals Recent Progress in the Development of Graphene Detector for Terahertz Detection

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 4987
Author(s):  
Jianlong Liu ◽  
Xin Li ◽  
Ruirui Jiang ◽  
Kaiqiang Yang ◽  
Jing Zhao ◽  
...  
Keyword(s):  
Recent Progress ◽  
Photovoltaic Effect ◽  
Dimensional Structure ◽  
High Electron ◽  
Terahertz Waves ◽  
Terahertz Detectors ◽  
Basic Part ◽  
Suitable Material ◽  
Terahertz Region ◽  
Frequency Independent

Terahertz waves are expected to be used in next-generation communications, detection, and other fields due to their unique characteristics. As a basic part of the terahertz application system, the terahertz detector plays a key role in terahertz technology. Due to the two-dimensional structure, graphene has unique characteristics features, such as exceptionally high electron mobility, zero band-gap, and frequency-independent spectral absorption, particularly in the terahertz region, making it a suitable material for terahertz detectors. In this review, the recent progress of graphene terahertz detectors related to photovoltaic effect (PV), photothermoelectric effect (PTE), bolometric effect, and plasma wave resonance are introduced and discussed.

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