Prism coupling of high-Q terahertz whispering-gallery-modes over two octaves from 0.2 THz to 1.1 THz

被引：27
作者：
Vogt, Dominik Walter [1 ,3 ]
Jones, Angus Harvey [1 ,3 ]
Schwefel, Harald G. L. [2 ,3 ]
Leonhardt, Rainer [1 ,3 ]
机构：
[1] Univ Auckland, Dept Phys, Auckland 1010, New Zealand
[2] Univ Otago, Dept Phys, 730 Cumberland St, Dunedin 9016, New Zealand
[3] Dodd Walls Ctr Photon & Quantum Technol, Dunedin, New Zealand
来源：
OPTICS EXPRESS | 2018年 / 26卷 / 24期
关键词：
WAVE-GUIDE; FANO RESONANCES; RESONATORS;
D O I：
10.1364/OE.26.031190
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on prism coupling of high-quality (high-Q) terahertz (THz) whispering-gallery modes (WGMs) in spherical high resistivity float zone grown silicon (HRFZ-Si) resonators over two octaves from 0.2 THz to 1.1 THz. The WGMs are excited using a HRFZ-Si prism and show unprecedented quality factors of up to 2.2 x 10(4). A detailed discussion of the phase-and mode-matching criteria of the prism coupling scheme implemented in the continuous wave THz spectroscopy system is presented. The results provide numerous opportunities for passive ultra-broadband high-Q devices operating in the THz frequency range. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：31190 / 31198
页数：9
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