Electromagnetic modelling of a terahertz-frequency quantum-cascade laser integrated with dual diagonal feedhorns

Abstract

We present an electromagnetic model of a THz QCL, integrated with a micro-machined waveguide and dual diagonal feedhorns, enabling simultaneous access to both facets of the QCL. A hybrid finite-element/Fourier transform approach enables analysis of both the near and far-fields in agreement with experimental observations. The far-field pattern shows enhancement of the beam profile when compared with an unmounted QCL, in terms of beam divergence and side-lobe suppression ratio.

Metadata

Item Type:	Conference or Workshop Item
Authors/Creators:	Zafar, E Auriacombe, O Rawlings, T Brewster, N Oldfield, ML Han, YJ Li, LH Linfield, EH Davies, AG Ellison, BN Dean, P Valavanis, A https://orcid.org/0000-0001-5565-0463
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds)
Funding Information:	Funder Grant number Centre for Earth Observation Instrumentation Not Known MRC MR/S015833/1
Depositing User:	Symplectic Publications
Date Deposited:	19 Jul 2019 11:44
Last Modified:	15 Sep 2019 00:38
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:148759

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Electromagnetic modelling of a terahertz-frequency quantum-cascade laser integrated with dual diagonal feedhorns

Abstract

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