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Common Metal-Dielectric-Metal Nanocavities for Multispectral Narrowband Light Absorption.
- Source :
-
Plasmonics . Jun2016, Vol. 11 Issue 3, p781-786. 6p. - Publication Year :
- 2016
-
Abstract
- We present a method to theoretically achieve multispectral narrowband light absorption in common metal-dielectric-metal nanocavities. Polarization-independent and wide-angle multi-band light absorption with absorbance up to 99 % is achieved owing to the excitation of multiple localized plasmon cavity modes. Strong interactions between plasmon resonances and photonic modes are further introduced for achieving sharp absorption spectrum with sub-10-nm bandwidth via a high-index dielectric spacer with a thickness exceeding λ/2. These findings can offer new perspectives for multispectral nano-optics devices including perfect light absorbers and subtractive polychromatic filters. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15571955
- Volume :
- 11
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Plasmonics
- Publication Type :
- Academic Journal
- Accession number :
- 115529322
- Full Text :
- https://doi.org/10.1007/s11468-015-0109-x