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

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

CORE (COnnecting REpositories)

CORE (COnnecting REpositories)