Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Ya-Xian Fan"'
Publikováno v:
AIP Advances, Vol 13, Iss 8, Pp 085314-085314-7 (2023)
In this paper, we connect two periodic channels with bandgaps of different physical properties to form a heterojunction of surface water waves, which realize a high-order mode water wave interface state and concentrate the water wave energy near the
Externí odkaz:
https://doaj.org/article/7aff18567aa449039d9049a532a25a44
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 3, Pp 1-8 (2022)
Terahertz (THz) propagation in periodic structures has attracted great attention because of its captivating electrical and optical properties. However, the created THz band gaps are usually considered to be caused by Bragg resonances. Here, we theore
Externí odkaz:
https://doaj.org/article/eb3e8fb6d6de4ebea844295f961aac6f
Publikováno v:
Results in Physics, Vol 44, Iss , Pp 106195- (2023)
The propagation of Rayleigh waves along solid surfaces has attracted great attention due to its ubiquity in seismic waves, non-destructive evaluation, acoustic surface wave devices, and so on. Moreover, Rayleigh waves in periodic structures and their
Externí odkaz:
https://doaj.org/article/5c803419a5894c6c9d2f5b01ac23efce
An Electrically Tunable Terahertz Filter Based on Liquid-Crystal-Filled Slits with Wall Corrugations
Publikováno v:
Photonics, Vol 9, Iss 12, p 894 (2022)
We propose a type of hollow planar waveguide with corrugated walls, which can realize electrically tunable terahertz (THz) filtering by filling the slit with liquid crystals. When the THz signals propagate in a planar waveguide with periodic corrugat
Externí odkaz:
https://doaj.org/article/663662ce587c4d9c95604df551c584aa
Publikováno v:
AIP Advances, Vol 11, Iss 7, Pp 075113-075113-7 (2021)
The defect state in periodic structures usually leads to a pass band in the forbidden bandgap and energy localization at the position of geometric change. In this paper, we have introduced periodic cavities into a symmetric structure composing of two
Externí odkaz:
https://doaj.org/article/952a3f3bf4504b7290125992514e2a76
Publikováno v:
Results in Physics, Vol 25, Iss , Pp 104190- (2021)
Localized defect states of liquid surface waves in non-Bragg periodic structures are investigated experimentally and validated numerically using the finite element method. Two parameters are considered, one is the position of the defect along the ful
Externí odkaz:
https://doaj.org/article/f8ac64814e454fb285d47551fc3270ca
Publikováno v:
Results in Physics, Vol 22, Iss , Pp 103840- (2021)
Defects in periodic structures always lead to the defect states, which can modulate the physical or chemical properties of materials to realize devices with very high performance. To form defects in periodic waveguides, we connect the three periodica
Externí odkaz:
https://doaj.org/article/9d616905da8541fba33c737832f999b1
Publikováno v:
Results in Physics, Vol 22, Iss , Pp 103984- (2021)
Resonances induced by structure periodicity can always lead to frequency gaps, which are forbidden bands of propagating waves. Besides the traditional Bragg gaps, non-Bragg gaps have been found in periodic waveguides for years, which have been proved
Externí odkaz:
https://doaj.org/article/5f75ad103eb748ebb77e3e70410063fc
Publikováno v:
AIP Advances, Vol 11, Iss 1, Pp 015215-015215-7 (2021)
In this paper, we use laboratory wave tank experiments to study the effect of asymmetry and defects on the bandgaps of surface water waves and use the finite element numerical method to validate our results. We demonstrate here that breaking the mirr
Externí odkaz:
https://doaj.org/article/1fce78360f0e46c8a3da4ab85fb3852f
Publikováno v:
AIP Advances, Vol 11, Iss 1, Pp 015336-015336-6 (2021)
This paper describes the fabrication of a water channel heterostructure by combining two types of periodic sidewalls with different duty ratios. This enables the manipulation and localization of water surface waves in bands that are traditionally ina
Externí odkaz:
https://doaj.org/article/d8096172916c453dbfad956738577116