Electrically tunable Fabry-Perot resonator based on microstructured SI containing liquid crystal

We have built Fabry-Perot resonators based on microstructured silicon and a liquid crystal. The devices exhibit tuning of the resonance peaks over a wide range, with relative spectral shifts of up to Δλ/λ = 10%. In order to achieve this substantial spectral shift, cavity peaks of high order were use...

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Bibliographic Details
Published in:Electromagnetic waves (Cambridge, Mass.) Mass.), 2011-12, Vol.122, p.293
Main Authors: Tolmachev, V.A, Melnikov, V.A, Baldycheva, A.V, Berwick, K, Perova, T.S
Format: Article
Language:English
Subjects:
Circuit design
Design and construction
Liquid crystals
Materials
Methods
Resonators
Online Access:Get full text
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Summary:We have built Fabry-Perot resonators based on microstructured silicon and a liquid crystal. The devices exhibit tuning of the resonance peaks over a wide range, with relative spectral shifts of up to Δλ/λ = 10%. In order to achieve this substantial spectral shift, cavity peaks of high order were used. Under applied voltages of up to 15 V, a variation in the refractive index of the nematic liquid crystal E7 from Δ[n.sub.LC] = 0.12 to Δ[n.sub.LC] = 0.17 was observed. These results may have practical applications in the near-, mid and far-infrared range.
ISSN:1070-4698
1559-8985