Work

Hybrid plasmonic–photonic whispering gallery mode resonators for sensing: a critical review

Year: 2017

Type: review

Abstract: In this review we present the state of the art and the most recent advances in the field of optical sensing with hybrid plasmonic-photonic whispering gallery mode (WGM) resonators. After a brief introduction on the basic physics behind photonic WGM resonators and localized surface plasmon (LSP) nanostructures, we analyze the different types of optical sensors specifically designed for bulk refractive index sensing, molecular binding and single object detection. We point out the physical and technological key points of the different approaches proposed in the literature, and we systematically compare hybrid sensors and purely photonic WGM sensors. This comparative analysis points out the real advantages brought by LSP nanostructures, and it identifies the most promising hybrid architectures.

Source: The Analyst

DOI: 10.1039/c6an02693a

Authors: Angelo Bozzola, Sara Perotto, Francesco De Angelis

Institution: Italian Institute of Technology

Language: English

Topic: Photonic and Optical Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: European Commission, FP7 Ideas: European Research Council

Awards: G3207356259, Neuro-Plasmonics, G7546946110, G896728979