Low-pump irradiance to modulate THz waves driven by photo-generated carriers in an InAs slab

E. Alvear-Cabezon; S. Blin; P. Nouvel; F. Gonzalez-Posada; R. Smaali; R. Teissier; A. Baranov; T. Taliercio; E. Centeno; IEEE

doi:10.1109/IRMMW-THz.2019.8874145

Acte de colloque

Low-pump irradiance to modulate THz waves driven by photo-generated carriers in an InAs slab

E. Alvear-Cabezon, S. Blin, P. Nouvel, F. Gonzalez-Posada, R. Smaali, R. Teissier, A. Baranov, T. Taliercio, E. Centeno et IEEE

International Conference on Infrared, Millimeter, and Terahertz Waves (Print), Vol.2019-, pp.1-2

09/2019

DOI: https://doi.org/10.1109/IRMMW-THz.2019.8874145

Résumé

Electromagnetics

Frequency measurement

Frequency modulation

Optical pumping

Slabs

We theoretically and experimentally study the THz electromagnetic properties of an undoped-InAs slab whose permittivity is optically modified by a photo-generation process. The modulation of the permittivity is calculated by solving the ambipolar rate equation for the free carriers. Experiment results demonstrate that InAs is a promising semiconductor to manufacture fast and efficiently on-chip THz components. We show a high modulation of the THz transmission up to 100% from 0.75 to 1.1THz at very low pump fluence in the continuous wave regime. We also demonstrate a high-speed transmission modulation rate up to the MHz range with a modulated pump.

Indicateurs

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Détails

Titre: Low-pump irradiance to modulate THz waves driven by photo-generated carriers in an InAs slab
Créateurs - sans rôle: E. Alvear-Cabezon - Institut Pascal
S. Blin - IES, Univ Montpellier, UMR CNRS 5214, Montpellier, France
P. Nouvel - IES, Univ Montpellier, UMR CNRS 5214, Montpellier, France
F. Gonzalez-Posada - IES, Univ Montpellier, UMR CNRS 5214, Montpellier, France
R. Smaali - Institut Pascal
R. Teissier - IES, Univ Montpellier, UMR CNRS 5214, Montpellier, France
A. Baranov - IES, Univ Montpellier, UMR CNRS 5214, Montpellier, France
T. Taliercio - IES, Univ Montpellier, UMR CNRS 5214, Montpellier, France
E. Centeno - Institut Pascal
IEEE
Détails de publication: International Conference on Infrared, Millimeter, and Terahertz Waves (Print), Vol.2019-, pp.1-2
Éditeur: IEEE
Nombre de pages: 2
Identifiants: 99162623709311
Unité académique: Institut d'Electronique et des Systèmes - IES
Langue: English
Type de ressource: Conference proceeding