Relationship between the order of rotation symmetry in perforated apertures and terahertz transmission characteristics

2012 ◽  
Vol 51 (11) ◽  
pp. 119002 ◽  
Author(s):  
Joong-Wook Lee ◽  
Jin-Kyu Yang ◽  
Ik-Bu Sohn ◽  
Hun-Kook Choi ◽  
Chul Kang ◽  
...  
2012 ◽  
Vol 112 (3) ◽  
pp. 033523 ◽  
Author(s):  
Qiwu Shi ◽  
Wanxia Huang ◽  
Jing Wu ◽  
Yaxin Zhang ◽  
Yuanjie Xu ◽  
...  

2020 ◽  
Vol 37 (7) ◽  
pp. 1942
Author(s):  
Su-jie Guo ◽  
Cun-jun Ruan ◽  
De-yin Kong ◽  
Jun Dai ◽  
Yan Zhang ◽  
...  

2005 ◽  
Vol 30 (10) ◽  
pp. 1210 ◽  
Author(s):  
Masaki Tanaka ◽  
Fumiaki Miyamaru ◽  
Masanori Hangyo ◽  
Takeshi Tanaka ◽  
Masamichi Akazawa ◽  
...  

2021 ◽  
Vol 8 ◽  
Author(s):  
Jun Yang ◽  
Junjie Xu ◽  
Rongxin Mao ◽  
Ying Li ◽  
Zhiping Yin ◽  
...  

In this paper, we present a novel design of an electrically tunable metamaterial device in the terahertz frequency range of 325–500 GHz. The device is analyzed and optimized using an equivalent circuit and numerical simulation. The experimental and simulation results are almost identical in the entire design frequency range. A maximum modulation depth of 90.87% is achieved in the transmission window. The bandpass width decreases from 102.55 to 28.7 GHz as the bias voltage increases from 0 to 30 V. This structure provides new insights into the potential of electrically tunable terahertz devices for a wide range of applications.


2019 ◽  
pp. 97-104
Author(s):  
Mikhail V. Tarasenkov ◽  
Egor S. Poznakharev ◽  
Vladimir V. Belov

The simulation program by the Monte Carlo method of pulse reactions of bistatic atmospheric aerosol-gas channels of optical-electronic communication systems (OECS) is created on the basis of the modified double local estimation algorithm. It is used in a series of numerical experiments in order to evaluate statistically the transfer characteristics of these channels depending on the optical characteristics of an atmosphere plane-parallel model for wavelengths λ = 0.3, 0.5, and 0.9 μm at a meteorological visibility range SM = 10 and 50 km. The results are obtained for a set of basic distances between the light source and the light receiver up to 50 km and for the angular orientations of the optical axes of a laser radiation beam and of the receiving system in a wide range of their values. The dependences of the pulse reactions maximum values over-the-horizon channels of the OECS on the variations of these parameters are established.


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