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Dielectric permittivity modulation of liquid crystals for microwave applications
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Xu, H., Trushkevych, Oksana, Collings, N. and Crossland, W. A. (2009) Dielectric permittivity modulation of liquid crystals for microwave applications. Molecular Crystals and Liquid Crystals, 502 (1). pp. 235-244. doi:10.1080/15421400902817346
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WRAP-dielectric-permittivity-modulation-liquid-crystals-Trushkeyvch-2008.pdf - Accepted Version - Requires a PDF viewer. Download (492Kb) | Preview |
Official URL: http://dx.doi.org/10.1080/15421400902817346
Abstract
This work presents the measurement of the dielectric anisotropy of selected nematic liquid crystals in the 0.01–6 GHz range, and comparison of the measurements with the birefringence values at optical frequencies. The effect of alignment on the reproducibility of dielectric measurements was also measured. It was found that a good surface alignment is essential to achieve reproducibility. Finally, it was experimentally confirmed that there is a strong correlation between the dielectric anisotropy in the microwave region and the birefringence at visible frequencies.
| Item Type: | Journal Article | ||||||
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| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| Library of Congress Subject Headings (LCSH): | Liquid crystals, Dielectrics, Microwave devices | ||||||
| Journal or Publication Title: | Molecular Crystals and Liquid Crystals | ||||||
| Publisher: | Taylor & Francis | ||||||
| ISSN: | 1542-1406 | ||||||
| Official Date: | 1 June 2009 | ||||||
| Dates: |
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| Volume: | 502 | ||||||
| Number: | 1 | ||||||
| Page Range: | pp. 235-244 | ||||||
| DOI: | 10.1080/15421400902817346 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
| Funder: | University of Cambridge. Centre for Advanced Photonics and Electronics (CAPE), ALPS Electric (Firm), Dow Corning Corporation |
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