Dunn, A orcid.org/0000-0002-7369-1469, Zhang, Z orcid.org/0000-0003-2282-3406, Horbury, M orcid.org/0000-0001-8235-8142 et al. (13 more authors) (2023) Liquid-Crystal-Based Controllable Attenuators Operating in the 1-4 Terahertz Band. [Preprint - ArXiv.org]
Abstract
Liquid-crystal devices (LCDs) offer a potential route toward adaptive optical components for use in the < 2 THz band of the electromagnetic spectrum. We demonstrate LCDs using a commercially available material (E7), with unbiased birefringence values of 0.14-0.18 in the 0.3-4 THz band. We exploit the linear dichroism of the material to modulate the emission from a 3.4-THz quantum cascade laser by up to 40%, dependent upon both the liquid-crystal layer thickness and the bias voltage applied.
Metadata
Item Type: | Preprint |
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Authors/Creators: |
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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) |
Funding Information: | Funder Grant number UK Space Agency Polaris House Not Known MRC (Medical Research Council) MR/S016929/1. EPSRC (Engineering and Physical Sciences Research Council) EP/P007449/1 EPSRC (Engineering and Physical Sciences Research Council) EP/P027687/1 UK Space Agency Polaris House Not Known |
Depositing User: | Symplectic Publications |
Date Deposited: | 24 Jul 2023 11:03 |
Last Modified: | 21 Jan 2025 14:24 |
Published Version: | https://arxiv.org/abs/2306.07665 |
Identification Number: | 10.48550/arXiv.2306.07665 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:200444 |