Mezzapesa, FP, Garrasi, K, Schmidt, J et al. (8 more authors) (2020) Semiconductor THz frequency combs exploiting solution processed graphene. 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 nano-engineer a miniaturized optical frequency comb synthesizer (FCS) comprising a heterogeneous THz quantum cascade laser integrated with a tightly coupled on-chip solution-processed graphene saturable-absorber reflector. This enable a high power (8 mW) FCS with over 90 optical modes to be demonstrated over more than 55% of the laser dynamic range, with over three-decade reduction of phase-noise over an additional 15% of this range. Furthermore, stable injection locking is demonstrated, paving the way to impact a number of key technologies and applications, including high-precision tunable broadband spectroscopy, quantum metrology and broadband THz nanoscopy.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Keywords: | Spectroscopy; Semiconductor lasers; Synthesizers; Graphene; Broadband communication; System-on-chip; Quantum cascade lasers |
Dates: |
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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 14:40 |
Last Modified: | 14 May 2021 14:40 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/irmmw-thz46771.2020.9370889 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:173998 |