Optica Open
Browse
arXiv.svg (5.58 kB)

Liquid-Crystal-Based Controllable Attenuators Operating in the 1-4 Terahertz Band

Download (5.58 kB)
preprint
posted on 2023-06-15, 16:00 authored by Aniela Dunn, Zhaopeng Zhang, Michael D. Horbury, Eleanor V. Nuttall, Yingjun Han, Mohammed Salih, Lianhe Li, Abigail Bond, Ehab Saleh, Russell Harris, Diego Pardo, Brian N. Ellison, Andrew D. Burnett, Helen F. Gleeson, Alexander Valavanis
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.

History

Disclaimer

This arXiv metadata record was not reviewed or approved by, nor does it necessarily express or reflect the policies or opinions of, arXiv.

Usage metrics

    Categories

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC