Tuneable Fabry–Perot etalon for terahertz radiation

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Tuneable Fabry–Perot etalon for terahertz radiation

Please use this identifier to cite or link to this item: http://hdl.handle.net/10036/28941


Title: Tuneable Fabry–Perot etalon for terahertz radiation
Author: Jewell, Sharon A.
Hendry, Euan
Isaac, Thomas Henry
Sambles, J. Roy
Citation: 10, article 033012
Publisher: Institute of Physics and Deutsche Physikalische Gesellschaft
Journal: New Journal of Physics
Date Issued: 2008
URI: http://hdl.handle.net/10036/28941
DOI: 10.1088/1367-2630/10/3/033012
Links: http://dx.doi.org/10.1088/1367-2630/10/3/033012 http://www.iop.org/EJ/abstract/1367-2630/10/3/033012/
Abstract: An indium tin oxide-clad liquid crystal filled Fabry–Perot etalon structure has been shown to act as an effective narrow-band filter at terahertz frequencies. An applied voltage, which controls the alignment of the nematic liquid crystal allows the refractive index of the core to be tuned. Transmission spectra show well-defined resonant peaks which shift in position when the alignment is changed from planar to homeotropic. The measured transmission spectra agree well with the results of a multilayer optics model and the birefringence of the liquid crystals over this frequency range are determined as Δn = 0.15(± 0.01) and Δn = 0.08(± 0.01) for E7 and ZLI 2293, respectively.
Type: Article
Description: Copyright © 2008 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. This is the published version of an article published in New Journal of Physics Vol. 10, article 033012. DOI:10.1088/1367-2630/10/3/033012
ISSN: 1367-2630

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