Engineering the Cavity modes and Polarization in Integrated Superconducting Coherent Terahertz Emitters

Xiong, Y., Kashiwagi, T., Klemm, R.A., Kadowaki, K. and Delfanazari, K. (2020) Engineering the Cavity modes and Polarization in Integrated Superconducting Coherent Terahertz Emitters. In: 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Buffalo, NY, USA, 8-13 Nov. 2020, ISBN 9781728166209 (doi: 10.1109/IRMMW-THz46771.2020.9370587)

Abstract

On-chip, solid-state terahertz (THz) devices based on superconducting Bi 2 Sr 2 CaCu 2 O 8+ δ (BSCCO) can coherently and continuously radiate electromagnetic waves with frequencies tunable between 100 GHz and 11 THz. Their huge frequency tunability observable by the application of an applied voltage of as small as 0<Vdc(V)<1.5 covers the entire THz gap. Here, we report on a novel approach towards engineering the THz waves in such devices, with pentagonal cavities, by performing the numerical simulations/analytical calculations of the cavity resonances. We investigate the radiation of the intense and coherent THz waves in pentagonal emitters by keeping the bias feed point in the middle and changing the device geometry. We compare the results with the experiment and find a good agreement.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Xiong, Mr Yusheng and Delfanazari, Dr Kaveh
• Authors: Xiong, Y., Kashiwagi, T., Klemm, R.A., Kadowaki, K., and Delfanazari, K.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 2162-2035
• ISBN: 9781728166209
• Published Online: 11 March 2021
• Copyright Holders: Copyright © 2020 IEEE
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher