Li, LH orcid.org/0000-0003-4998-7259, Garrasi, K, Kundu, I orcid.org/0000-0002-3564-1903 et al. (5 more authors) (2018) Broadband heterogeneous terahertz frequency quantum cascade laser. Electronics Letters, 54 (21). pp. 1229-1231. ISSN 0013-5194
Abstract
The authors demonstrate a broadband, heterogeneous terahertz frequency quantum cascade laser by exploiting an active region design based on longitudinal optical-phonon-assisted interminiband transitions. They obtain continuous wave laser emission with a threshold current density of ~120 A/cm 2 , a dynamic range of ~3.1, and an emission spectrum spanning from 2.4 to 3.4 THz at 15 K.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | current density; quantum cascade lasers; phonons; microwave photonics; temperature 15 K; frequency 2; 4 THz to 3; 4 THz; temperature 15; 0 K; emission spectrum; threshold current density; longitudinal optical-phonon-assisted interminiband transitions; continuous wave laser emission; active region design; broadband heterogeneous terahertz frequency quantum cascade laser |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) |
Funding Information: | Funder Grant number EU - European Union GA 665158 EPSRC EP/P021859/1 Royal Society IEC\NSFC\170384 |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 Oct 2018 09:00 |
Last Modified: | 17 Dec 2024 10:58 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1049/el.2018.6062 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:137768 |