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Proceedings Article

Microwaves: thin metal slits and liquid crystals

[+] Author Affiliations
John R. Sambles, Alastair P. Hibbins, Robert J. Kelly, James R. Suckling

Univ. of Exeter (United Kingdom)

Fuzi Yang

Tsinghua Univ. (China)

Proc. SPIE 5618, Integrated Optical Devices, Nanostructures, and Displays, 1 (November 30, 2004); doi:10.1117/12.580829
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From Conference Volume 5618

  • Integrated Optical Devices, Nanostructures, and Displays
  • Keith L. Lewis
  • London, United Kingdom | October 25, 2004

abstract

Using liquid crystals to control the propagation of microwaves is a potentially interesting technology. By incorporating small amounts of liquid crystal in thin slat metal structures through which the microwaves may resonantly pass a whole new range of voltage tuned microwave devices are becoming available. Metallic sub-wavelength slit structures at microwave frequencies have been constructed which show Fabry-Perot type resonances in very thin slits. If the dielectric in such thin slits is an aligned liquid crystal it is found possible to voltage-control the resonant frequencies. Novel selective filters and structures for microwave beam steering have been fabricated leading to a new generation of liquid crystal controlled devices.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

John R. Sambles ; Alastair P. Hibbins ; Robert J. Kelly ; James R. Suckling and Fuzi Yang
"Microwaves: thin metal slits and liquid crystals", Proc. SPIE 5618, Integrated Optical Devices, Nanostructures, and Displays, 1 (November 30, 2004); doi:10.1117/12.580829; http://dx.doi.org/10.1117/12.580829


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