Diffraction Properties of Electromagnetic Waves on Periodic and Aperiodic Gratings in Hollow Dielectric Waveguides

被引：0
|
作者：
Degtyarev, Andrey, V [1 ]
Dubinin, Mykola M. [1 ]
Gurin, Oleg, V [1 ]
Legenkiy, Maxim N. [1 ]
Maslov, Vyacheslav A. [1 ]
Muntean, Konstantin, I [1 ]
Ryabykh, Valery N. [1 ]
Senyuta, Vladislav S. [1 ]
机构：
[1] Kharkov Natl Univ, 4 Svobody Sq, UA-61022 Ukraine, Ukraine
来源：
2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ) | 2021年
关键词：
D O I：
10.1109/IRMMW-THz50926.2021.9566946
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper presents the results of theoretical modeling of axisymmetric gradient gratings of a periodic and aperiodic amplitude profile (Fresnel, Fibonacci) positioned within a circular hollow dielectric waveguide. Such gratings can be placed in waveguide dielectric resonators and used as output mirrors of terahertz lasers. Using the Finite-Difference in Time Domain method for Bodies of Revolution (BOR FDTD) the dependences of the reflection and transmission coefficients of the basic modes of waveguide resonators for these gradient structures are found. The narrow-band application of the studied aperiodic structures in comparison with the known periodic structures is shown.
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页数：2
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