Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Dexian Yan"'
Autor:
Jining Li, Jiyue Chen, Dexian Yan, Fei Fan, Kai Chen, Kai Zhong, Yuye Wang, Zhen Tian, Degang Xu
Publikováno v:
Advanced Photonics Research, Vol 5, Iss 7, Pp n/a-n/a (2024)
The diversity and practicability of terahertz metamaterials have experienced rapid development in the past decade due to the increasing demand for various devices. This topic has attracted significant interest from researchers. Among the key function
Externí odkaz:
https://doaj.org/article/c8134f36dc7e44398f16c4dc64da68ef
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 5, Pp 1-9 (2024)
This paper proposes ahybrid RF/FSO system based on RIS reflection to interfere with eavesdroppers in FSO eavesdropping scenarios, and analyzes and optimizes the physical layer security performance of this communication system. In this work, the RF li
Externí odkaz:
https://doaj.org/article/a879fa25442b47b4883c32190f5f2375
Publikováno v:
Results in Physics, Vol 58, Iss , Pp 107539- (2024)
In this paper, we present a novel terahertz plasmonic sensing concept that utilizes a metasurface coupler to excite spoof surface plasmon polaritons (SSPs) modes on graphene strips. The dielectric metasurface unit cell consists of two silicon cylindr
Externí odkaz:
https://doaj.org/article/354aaeb9430943228339918e8d563cc2
Publikováno v:
Results in Physics, Vol 52, Iss , Pp 106910- (2023)
The combination of terahertz (THz) wave and the orbital angular momentum (OAM) multiplexing technology can further improve the communication capacity. Compared to other outer cladding structures, the negative curvature structure has been proven to pr
Externí odkaz:
https://doaj.org/article/35573f0877e14c159e5c137a73950548
Publikováno v:
Results in Physics, Vol 29, Iss , Pp 104766- (2021)
We design a novel negative curvature fiber (NCF) to support terahertz orbital angular momentum (OAM) modes. Numerical models are constructed to evaluate the transmission performances of vector modes in the frequency range of 0.40–0.80 THz. The desi
Externí odkaz:
https://doaj.org/article/b48a13db1ec14131a56c8425e95ae266
Publikováno v:
Photonics, Vol 9, Iss 12, p 917 (2022)
Ultra-thin focusing meta-lenses based on the metasurface structure with adjustable focal length show important applicant value in compact systems, especially in on-chip terahertz spectroscopy, imaging systems, and communication systems. A stretchable
Externí odkaz:
https://doaj.org/article/2daf968432444183a0eec9c2c630c21f
Publikováno v:
Photonics, Vol 9, Iss 11, p 848 (2022)
We presented an angle-multiplexing low refractive index dielectric metasurface for terahertz absorption spectrum enhancement of lactose with high Q resonance properties. The unit cell structure of the acrylonitrile butadiene styrene (ABS) square stru
Externí odkaz:
https://doaj.org/article/6c053e231d8f4fcab1aa3352d450036a
Publikováno v:
Nanomaterials, Vol 12, Iss 16, p 2883 (2022)
Combining tunable properties and various functionalities into a single metamaterial structure has become a novel research hotspot and can be used to tackle great challenges. The multifunctional metamaterial structure that combines absorption, linear-
Externí odkaz:
https://doaj.org/article/e96734e365914ee892cc5791ebecb12d
Autor:
Xiangjun Li, Luoyang Wang, Gang Cheng, Xiaomei Hou, Dexian Yan, Guohua Qiu, Shihui Guo, Weidong Zhou, Jining Li
Publikováno v:
APL Materials, Vol 9, Iss 5, Pp 051118-051118-6 (2021)
We propose a terahertz surface plasmon resonance sensor based on dielectric metagrating coupling to the spoof surface plasmon (SSP) mode on periodically grooved metal films. The well-designed silicon metagrating converts the normal incident to the ne
Externí odkaz:
https://doaj.org/article/997b3a692d024a468329392c2e3a0664
Publikováno v:
Photonics, Vol 9, Iss 5, p 335 (2022)
When metamaterial structures meet functional materials, what will happen? The recent rise of the combination of metamaterial structures and functional materials opens new opportunities for dynamic manipulation of terahertz wave. The optical responses
Externí odkaz:
https://doaj.org/article/3a8dab2fee554d3abdcec112b51cc011