Using phonon resonances as a route to all-angle negative refraction in the far-infrared region: the case of crystal quartz

We consider how all-angle negative refraction may be induced in anisotropic crystals by making use of the phonon response. We investigate the example of crystal quartz at far-infrared wavelengths. Reflection and transmission measurements confirm the expected behavior, and show relatively high transm...

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Bibliographic Details
Published in:Physical review letters 2010-10, Vol.105 (16), p.163903-163903, Article 163903
Main Authors: Rodrigues da Silva, R, Macêdo da Silva, R, Dumelow, T, da Costa, J A P, Honorato, S B, Ayala, A P
Format: Article
Language:English
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Summary:We consider how all-angle negative refraction may be induced in anisotropic crystals by making use of the phonon response. We investigate the example of crystal quartz at far-infrared wavelengths. Reflection and transmission measurements confirm the expected behavior, and show relatively high transmission efficiency at frequencies at which negative refraction occurs.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.105.163903