Photonic Bandgap Structures Novel Technological Platforms for Physical, Chemical and Biological Sensing

Indexed in: EBSCO, Book Citation Index, Science Edition.

This E-Book covers the research and the development of a novel generation of photonic devices for sensing applications. The E-Book starts with a brief review of basic photonic crystal (PhC) structure ...
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Physical, Chemical and Biological Sensors Based on Photonic Crystals

Pp. 195-215 (21)

Sanja Zlatanovic and Annette Grot

Abstract

Photonic crystal sensors have recently drawn much attention due to their inherent compactness and high sensitivity. Different types of photonic crystal sensors rely on one main transduction mechanism: perturbations in environmental conditions alter index of refraction or periodicity of the structure which is transferred to a detectable change in optical power or spectrum. This transduction mechanism facilitates utilization of photonic crystal for sensor applications ranging from pressure and displacement measurements to detection of chemical composition change and binding events. In this chapter, we give a summary of different types of photonic crystal sensors such as waveguides, microcavities and self-assembled 3D structures and review their application to physical, chemical and biological sensing. We discuss advantages and limitations of the technology.

Keywords:

Optical sensing, photonic crystals, compact sensors.

Affiliation:

Department of Electrical and Computer Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA