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Proceedings Paper

Towards realisation of an efficient continuous wave terahertz source using quantum dot devices
Author(s): Nasir G. Bello; Semen Smirnov; Andrei Gorodetsky; Edik U. Rafailov
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Paper Abstract

A continuous wave (CW) terahertz source emitting in a broad frequency range (1-5THz) is promising towards achieving a compact, high power, finely tunable, room temperature terahertz generation system which will be of immense significance towards the realisation of terahertz applications in spectroscopy, communication, sensing, and imaging among others. We have demonstrated a tunable continuous-wave Quantum Dot external cavity laser emitting at two frequencies for continuous wave terahertz emission in a Quantum dot Photoconductive Antenna (PCA). The external cavity QD Laser has been characterised with tunability of 152nm and a tuning range from 1143nm -1295.8nm that lies within the THz difference frequency for the generation of THz radiation from QD based PCAs.

Paper Details

Date Published: 6 September 2019
PDF: 6 pages
Proc. SPIE 11124, Terahertz Emitters, Receivers, and Applications X, 111240G (6 September 2019); doi: 10.1117/12.2530730
Show Author Affiliations
Nasir G. Bello, Aston Univ. (United Kingdom)
Semen Smirnov, Aston Univ. (United Kingdom)
Andrei Gorodetsky, Univ. of Birmingham (United Kingdom)
Edik U. Rafailov, Aston Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 11124:
Terahertz Emitters, Receivers, and Applications X
Manijeh Razeghi; Alexei N. Baranov; Miriam S. Vitiello, Editor(s)

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