Numerical simulation of terahertz-wave propagation in photonic crystal waveguide based on sapphire shaped crystal

3rd International Symposium "Optics and its Applications"

Zaytsev, Kirill I.^1,2,3 ; Katyba, Gleb M.^1 ; Kurlov, Vladimir N.^4 ; Shikunova, Irina A.^4 ; Mukhina, Elena E.^1 ; Kudrin, Konstantin G.^1,2,5 ; Reshetov, Igor V.^2,5 ; Karasik, Valeriy E.^1,2 ; Yurchenko, Stanislav O.^1,2

Bauman Moscow State Technical University, 2nd Baumanskaya str. 5, Moscow

105005, Russia^1

Institute of Improvement of Professional Skill of the Federal Medico-Biological Agency of Russia, Volokolamskoe shosse 91, Moscow

125371, Russia^2

ITMO University, Kronverksky Ave. 49, Saint-Petersburg

197101, Russia^3

Institute of Solid State Physics of Russian Academy of Sciences, Academician Ossipyan str. 2, Chernogolovka

142432, Russia^4

I.M.Sechenov First Moscow State Medical University, Trubetskaya str., 8/2, Moscow

119048, Russia^5

关键词: Cylindrical channel;    Extinction coefficients;    Finite-difference analysis;    Hexagonal lattice;    Minimal power;    Photonic crystal waveguide;    Shaped single crystal;    Wide frequency range;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/673/1/012001/pdf
DOI  :  10.1088/1742-6596/673/1/012001

来源: IOP

【 摘 要 】

Terahertz (THz) waveguiding in sapphire shaped single crystal has been studied using the numerical simulations. The numerical finite-difference analysis has been implemented to characterize the dispersion and loss in the photonic crystalline waveguide containing hollow cylindrical channels, which form the hexagonal lattice. Observed results demonstrate the ability to guide the THz-waves in multi-mode regime in wide frequency range with the minimal power extinction coefficient of 0.02 dB/cm at 1.45 THz. This shows the prospectives of the shaped crystals for highly-efficient THz waveguiding.