Universal lineshapes at the crossover between weak and strong critical coupling in Fano-resonant coupled oscillators

Year: 2016

Authors: Zanotto S., Tredicucci A.

Autors Affiliation: CNR, Ist Nazl Ott, Via Nello Carrara 1, I-50019 Sesto Fiorentino, FI, Italy; CNR, Ist Nanosci, NEST, Pza S Silvestro 12, I-56127 Pisa, Italy; Univ Pisa, Dipartimento Fis E Fermi, Largo Pontecorvo 3, I-56127 Pisa, Italy.

Abstract: In this article we discuss a model describing key features concerning the lineshapes and the coherent absorption conditions in Fano-resonant dissipative coupled oscillators. The model treats on the same footing the weak and strong coupling regimes, and includes the critical coupling concept, which is of great relevance in numerous applications; in addition, the role of asymmetry is thoroughly analyzed. Due to the wide generality of the model, which can be adapted to various frameworks like nanophotonics, plasmonics, and optomechanics, we envisage that the analytical formulas presented here will be crucial to effectively design devices and to interpret experimental results.

Journal/Review: SCIENTIFIC REPORTS

Volume: 6      Pages from: 24592-1  to: 24592-7

KeyWords: INTERFEROMETRIC CONTROL; OPTICAL RESONATORS; SYSTEMS; METAMATERIALS; ABSORPTION
DOI: 10.1038/srep24592

Citations: 16
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