Enhanced absorption efficiency of ultrathin metamaterial solar absorbers by plasmonic Fano resonance

Khai Q. Le, Jing Bai

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We demonstrate a proof of principle that plasmonic Fano resonance can provide a complementary enhancement mechanism boosting the absorption efficiency of thin metamaterial solar absorbers over a wide angle of incidence under both TE and TM polarizations. Fano resonances are induced in arrays of two asymmetric metallic nanodimers coupled to a metallic layer through an intermediate insulator thin film. The resulting moderate resonant peaks shown in the scattering spectrum are predicted to play a dominant role in light-trapping enhancement.

Original languageEnglish (US)
Pages (from-to)595-600
Number of pages6
JournalJournal of the Optical Society of America B: Optical Physics
Volume32
Issue number4
DOIs
StatePublished - Apr 1 2015

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