We present a novel configuration of photonic/plasmonic microcavity with a 1D photonic crystal cavity (PhC) vertically coupled to a metal slot. A strong light-matter interaction is allowed, due to a strong photons confinement in the metal slot, which corresponds to a low mode volume (V = 2×10-3 (λ/n)3). A Q-factor of 2.6×103 has been obtained, providing a ultra-high Q/V = 1.3×106 (λ/n)-3, with a resonance transmission of 48 % λ = 1563.70 nm. Accurate 3D Finite Element Method (FEM) simulations have been performed to design the cavity. Optical trapping has been identified as the most suitable application for the proposed device, due to a strong gradient of the light field in the metal slot that allows high values of optical force and, consequently, the ability to trap nanoparticle with a diameter less than 100 nm
Design of a new photonic/plasmonic microcavity allowing a strong light-matter interaction / Conteduca, Donato; Dell'Olio, Francesco; Ciminelli, Caterina; Krauss, T.; Armenise, Mario Nicola. - ELETTRONICO. - (2014). (Intervento presentato al convegno 3rd Mediterranean Photonics Conference, MePhoCo 2014 tenutosi a Trani, Italy nel May 7-9, 2014) [10.1109/MePhoCo.2014.6866470].
Design of a new photonic/plasmonic microcavity allowing a strong light-matter interaction
CONTEDUCA, Donato;DELL'OLIO, Francesco;CIMINELLI, Caterina;ARMENISE, Mario Nicola
2014-01-01
Abstract
We present a novel configuration of photonic/plasmonic microcavity with a 1D photonic crystal cavity (PhC) vertically coupled to a metal slot. A strong light-matter interaction is allowed, due to a strong photons confinement in the metal slot, which corresponds to a low mode volume (V = 2×10-3 (λ/n)3). A Q-factor of 2.6×103 has been obtained, providing a ultra-high Q/V = 1.3×106 (λ/n)-3, with a resonance transmission of 48 % λ = 1563.70 nm. Accurate 3D Finite Element Method (FEM) simulations have been performed to design the cavity. Optical trapping has been identified as the most suitable application for the proposed device, due to a strong gradient of the light field in the metal slot that allows high values of optical force and, consequently, the ability to trap nanoparticle with a diameter less than 100 nmI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
