Viti, L, Mezzapesa, FP, Raab, J et al. (6 more authors) (2020) Ultrafast THz intersubband polariton saturable absorber integrated with a quantum cascade frequency comb. In: 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). 45th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 08-13 Nov 2020, Buffalo, NY, USA. IEEE , p. 1. ISBN 978-1-7281-6620-9
Abstract
We devise a THz polaritonic saturable absorber exploiting ultra-strong coupled intersubband cavity polaritons generated in a multi quantum well (MQW) heterostructure. By coupling the polaritonic saturable absorber reflector with a high bandwidth heterogeneous THz QCL frequency comb (2.3-3.8 THz) we demonstrate spectral reshaping of the QCL emission and a major increase of the comb operational dynamic range up to 38% characterized by a stable single and narrow intermode beatnote.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Keywords: | Couplings; Bandwidth; Dynamic range; Polaritons; Quantum cascade lasers; Quantum well devices |
Dates: |
|
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) The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Medicine (Leeds) > Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM) > Specialist Science Education Dept (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 14 May 2021 14:49 |
Last Modified: | 14 May 2021 14:49 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/irmmw-thz46771.2020.9370406 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:174004 |