Optical Sensors Based on Whispering Gallery Modes in Fluorescent Microbeads: Size Dependence and Influence of Substrate

Whispering gallery modes in surface-fixated fluorescent polystyrene microbeads are studied in view of their capability of sensing changes in the refractive index of the beads’ environment by exposing them to water/glycerol mixtures of varying composition. The mode positions are analyzed by simultane...

Full description

Bibliographic Details
Main Authors: Alexandre Francois, Michael Himmelhaus
Format: Article
Language:English
Published: MDPI AG 2009-08-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/9/9/6836/