Microspherical resonators for biophotonic sensors

M. Brenci; R. Calzolai; F. Cosi; G. Nunzi Conti; S. Pelli; G. C. Righini

doi:10.1117/12.675800

20 April 2006 Microspherical resonators for biophotonic sensors

M. Brenci, R. Calzolai, F. Cosi, G. Nunzi Conti, S. Pelli, G. C. Righini

Proceedings Volume 6158, Lightmetry and Light and Optics in Biomedicine 2004; 61580S (2006) https://doi.org/10.1117/12.675800
Event: Lightmetry and Light and Optics in Biomedicine 2004, 2004, Warsaw, Poland

Abstract

Nowadays biological sensing is representing a very active area of research due to the many possible applications in environmental control, food testing, pharmaceutical screening, and genetic analysis. A particular need exists for miniature biosensors for the detection of proteins, DNA, toxins and, more generally, infectious agents. Several optical techniques have proven to be quite effective, and biophotonics is a continuously growing discipline. Here we provide a quick overview of the recent progresses in the development of optical biosensors based on resonant cavities constituted by dielectric microspheres, where light propagation occurs through whispering-gallery modes (WGMs). The effect of any perturbation to the optical resonance structure of a microsphere is such that a very high sensitivity can be achieved.

Citation Download Citation

M. Brenci, R. Calzolai, F. Cosi, G. Nunzi Conti, S. Pelli, and G. C. Righini "Microspherical resonators for biophotonic sensors", Proc. SPIE 6158, Lightmetry and Light and Optics in Biomedicine 2004, 61580S (20 April 2006); https://doi.org/10.1117/12.675800

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