Theoretical description of bifacial optical nanomaterials

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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In general, optical nanomaterials composed of noncentrosymmetric nanoscatterers are bifacial, meaning that two counter-propagating waves inside the material behave differently. Thus far a practical theory for the description of such materials has been missing. Herein, we present a theory that connects the design of the bifacial nanomaterial’s “atoms” with the refractive index and wave impedance of the medium. We also introduce generalized Fresnel coefficients and investigate the role of electromagnetic multipoles on the bifaciality. We find that in any material two counter-propagating waves must experience the same refractive index, but their impedances can differ. The model is demonstrated in practice by the design of a nanomaterial slab with one of its facets being optically reflective, while the other being totally non-reflective.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut23471-23485
Sivumäärä16
JulkaisuOptics Express
Vuosikerta21
Numero20
TilaJulkaistu - 2013
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Tutkimusalat

  • optical nanomaterials, spatial dispersion, wave parameters

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