Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Guo Tianjing"'
Autor:
Liu Wencan, Zhou Xinwei, Zou Shucai, Hu Zhengguang, Shen Yun, Cai Mengqiang, Lin Dongdong, Zhou Jia, Deng Xiaohua, Guo Tianjing, Lei Jiangtao
Publikováno v:
Nanophotonics, Vol 12, Iss 6, Pp 1177-1187 (2023)
Terahertz (THz) metamaterial sensor is a newly-developing interdisciplinary technology, which combines the essential characteristics of THz spectroscopy and metamaterials, to obtain better sensitivity for trace detection of the different target analy
Externí odkaz:
https://doaj.org/article/3f812ba00c8f490585f890fbdd12a1d6
Autor:
Liu, Chao, Zhao, Ziyang, Guo, Tianjing, Xu, Jie, Deng, Xiaohua, Yuan, Kai, Tang, Rongxin, Tsakmakidis, Kosmas L., Hong, Lujun
We have theoretically investigated surface magnetoplasmons (SMPs) in a yttrium-iron-garnet (YIG) sandwiched waveguide. The dispersion demonstated that this waveguide can support topological unidirectional SMPs. Based on unidirectional SMPs, magnetica
Externí odkaz:
http://arxiv.org/abs/2411.04698
Publikováno v:
Opt. Express, vol. 32, No. 19, pp. 32667-32679, 2024
We investigate the design and performance of a new multilayer graphene metasurface for achieving ultrabroadband coherent perfect absorption (CPA) in the THz regime. The proposed structure comprises of three graphene patterned metasurfaces separated b
Externí odkaz:
http://arxiv.org/abs/2408.09987
Publikováno v:
Physical Review B 109 (15), 155424 (2024)
Here we demonstrate the efficient photon-pair generation via spontaneous parametric down conversion from a semiconductor metasurface supporting dual quasi-bound states in the continuum (quasi-BICs). In a simple metasurface design composed of AlGaAs e
Externí odkaz:
http://arxiv.org/abs/2401.14140
Autor:
Guo, Tianjing, Argyropoulos, Christos
Publikováno v:
Journal of Appl. Phys., vol. 134, No. 5, p. 050901, 2023
Graphene can support surface plasmons with higher confinement, lower propagation loss, and substantially more tunable response compared to usual metal-based plasmonic structures. Interestingly, plasmons in graphene can strongly couple with nanostruct
Externí odkaz:
http://arxiv.org/abs/2306.10613
Autor:
Guo, Tianjing, Argyropoulos, Christos
Publikováno v:
Physical Review B, vol. 106, pp. 235418, 2022
Nonreciprocity is important for optical information processing, full-duplex communications, and protection of sensitive laser equipment from unwanted reflections. However, it is very challenging to obtain strong nonreciprocal response in optical freq
Externí odkaz:
http://arxiv.org/abs/2212.02561
Autor:
Guo, Tianjing, Argyropoulos, Christos
Publikováno v:
Advanced Photonics Research, vol. 2, No. 6, pp. 2000168, 2021
Graphene is a unique two-dimensional (2D) material that has been extensively investigated owing to its extraordinary photonic, electronic, thermal, and mechanical properties. Excited plasmons along its surface and other unique features are expected t
Externí odkaz:
http://arxiv.org/abs/2101.05698
Autor:
Guo, Tianjing, Argyropoulos, Christos
Publikováno v:
Journal of Optics, vol. 22, No. 8, p. 084003, 2020
We present an asymmetric bifacial graphene metasurface to realize tunable and broadband coherent perfect absorption (CPA) at terahertz (THz) frequencies. The proposed design is composed of two dissimilar graphene square patch metasurfaces stacked ove
Externí odkaz:
http://arxiv.org/abs/2005.11876
Publikováno v:
Proc. SPIE 11284, Optoelectronics XXII, 1128412, 2020
The active and nonlinear graphene properties are limited due to weak light matter interaction between the ultrathin graphene and the incident light. In this work, we present enhanced nonlinear effects at the low terahertz (THz) range by designing a n
Externí odkaz:
http://arxiv.org/abs/2003.01612
Autor:
Guo, Tianjing, Argyropoulos, Christos
Publikováno v:
Proc. SPIE 10982, Micro- and Nanotechnology Sensors, Systems, and Applications XI, 109821E, 2019
Graphene is a two-dimensional layer of carbon atoms arranged in a honeycomb lattice, whose outstanding properties makes it an excellent material for future electronic and photonic terahertz (THz) devices. In this work, we design hybrid graphene metas
Externí odkaz:
http://arxiv.org/abs/2001.03828