Godden, H.J. orcid.org/0009-0000-7808-0926, North, N.K., Kundu, I. et al. (4 more authors) (2026) Dual Frequency Liquid Crystals for Terahertz Power Stabilization. In: 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 17-22 Aug 2025, Helsinki, Finland. Institute of Electrical and Electronics Engineers. ISBN: 979-8-3503-7884-9. ISSN: 2162-2027. EISSN: 2162-2035.
Abstract
Liquid crystal (LC) devices have a wide range of applications in electrically controlled adaptive optical devices. However, these devices have much slower operating speeds in the THz band than in the visible band, owing to the need for thicker active layers. A new device was fabricated using a dual-frequency LC which overcomes the speed limitations by allowing both electrically driven switch-on and switch-off transitions. This device showed a transmission of ~7% at 3.4 THz, with modulation depths of 60%, along with a maximum modulation rate of 20 Hz.
Metadata
| Item Type: | Proceedings Paper |
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| Authors/Creators: |
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| Copyright, Publisher and Additional Information: | This is an author produced version of a conference paper published in 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), made available under the terms of the Creative Commons Attribution License (CC-BY), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Millimeter wave devices, Frequency modulation, Optical switches, Liquid crystal devices, Liquid crystals, Optical devices, Terahertz communications |
| 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) |
| Funding Information: | Funder Grant number MRC (Medical Research Council) MR/Y011775/1 MRC (Medical Research Council) MR/S016929/1. |
| Date Deposited: | 09 Feb 2026 15:20 |
| Last Modified: | 11 Feb 2026 15:57 |
| Published Version: | https://ieeexplore.ieee.org/document/11319731 |
| Status: | Published |
| Publisher: | Institute of Electrical and Electronics Engineers |
| Identification Number: | 10.1109/irmmw-thz61557.2025.11319731 |
| Related URLs: | |
| Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:237617 |

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