Terahertz Photonic Crystal Waveguides Based on Sapphire Shaped Crystals

被引:46
|
作者
Zaytsev, Kirill I. [1 ,2 ]
Katyba, Gleb M. [1 ,3 ]
Kurlov, Vladimir N. [3 ]
Shikunova, Irina A. [3 ]
Karasik, Valeriy E. [1 ,2 ]
Yurchenko, Stanislav O. [1 ,2 ]
机构
[1] Bauman Moscow State Tech Univ, Moscow 105005, Russia
[2] Fed Medicobiol Agcy Russia, Inst Improvement Profess Skill, Moscow 125371, Russia
[3] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
基金
俄罗斯基础研究基金会; 俄罗斯科学基金会;
关键词
Computational electrodynamics; photonic crystal; sapphire shaped crystals; terahertz (THz) pulsed spectroscopy; terahertz (THz) technology; waveguide; TIME-DOMAIN SPECTROSCOPY; OPTICAL-FIBERS; NONDESTRUCTIVE EVALUATION; IN-VIVO; GROWTH; PROPAGATION; PULSES; TRANSMISSION; INDEX; MODE;
D O I
10.1109/TTHZ.2016.2555981
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
In this paper, an ability for highly efficient terahertz (THz) waveguiding in multichannel sapphire shaped crystals is demonstrated. The edge-defined film-fed growth (EFG) technique (or Stepanov technique) of shaped crystal growth has been implemented to manufacture the THz photonic crystalline (PC) waveguide. The PC waveguide has been characterized using both numerical simulations and experimental study. It allows guiding the THz waves in multimode regime with the minimal dispersion in frequency range of 1.0-1.55 THz and the minimal power extinction coefficient of 0.02 dB/cm at 1.45 THz. Themode interference phenomenon has been observed in this waveguide highlighting the prospectives of its use for intrawaveguide interferometry. These results demonstrate the capabilities of combining the EFG/Stepanov technique advantages with unique properties of sapphire, such as relatively low THz-wave absorption, high mechanical, thermal, chemical, and radiation strength, for manufacturing the THz waveguides characterized with low loss and dispersion and suitable for use in wide range of THz technology applications in biomedical and material sciences, including sensing in aggressive environment.
引用
收藏
页码:576 / 582
页数:7
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