THz intervalence band antipolaritons

Inuwa A. Faragai, Mauro F. Pereira

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

THz polaritons and antipolaritons have strong potential for device applications and are a challenging field of fundamental studies. In this paper, we start from a numerically exact nonequilibrium many body solutions and adjust it to a simplified nonlinear dielectric constant approach to the optical susceptibility. The resulting expression is inserted in the wave equation to describe the coupling of TE-polarized THz radiation with an intervalence band transition in GaAs/Al0.3Ga0.7As multiple quantum wells embedded in microcavities. The energy dispersions relations leading to THz polaritons are investigated. Here we focus on the impact of dephasing and scattering processes for different structures and excitation conditions in an inverted medium leading to antipolaritons.

Original languageBritish English
Article number012006
JournalJournal of Physics: Conference Series
Volume526
Issue number1
DOIs
StatePublished - 2014
Event4th Workshop on Theory, Modelling and Computational Methods for Semiconductors, TMCS 2014 - Salford, United Kingdom
Duration: 22 Jan 201424 Jan 2014

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