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Most Downloaded Articles
- Towards nano-scale photonics with micro-scale photons: the opportunities and challenges of mid-infrared plasmonics by Law, Stephanie/ Podolskiy, Viktor and Wasserman, Daniel
- Color science of nanocrystal quantum dots for lighting and displays by Erdem, Talha and Demir, Hilmi Volkan
- Optical microfibers and nanofibers by Wu, Xiaoqin and Tong, Limin
- Optical vortices in fiber by Ramachandran, Siddharth and Kristensen, Poul
- Hollow-core photonic bandgap fibers: technology and applications by Poletti, Francesco/ Petrovich, Marco N. and Richardson, David J.
Review Label-free detection with high-Q microcavities: a review of biosensing mechanisms for integrated devices
1Max Planck Institute for the Science of Light, Laboratory of Nanophotonics and Biosensing, G.Scharowsky Str. 1, 91058 Erlangen, Germany
2Electrical and Systems Engineering Department, Washington University, St. Louis, MO 63130, USA
Citation Information: Nanophotonics. Volume 1, Issue 3-4, Pages 267–291, ISSN (Online) 2192-8614, ISSN (Print) 2192-8606, DOI: 10.1515/nanoph-2012-0021, December 2012
- Published Online:
Optical microcavities that confine light in high-Q resonance promise all of the capabilities required for a successful next-generation microsystem biodetection technology. Label-free detection down to single molecules as well as operation in aqueous environments can be integrated cost-effectively on microchips, together with other photonic components, as well as electronic ones. We provide a comprehensive review of the sensing mechanisms utilized in this emerging field, their physics, engineering and material science aspects, and their application to nanoparticle analysis and biomolecular detection. We survey the most recent developments such as the use of mode splitting for self-referenced measurements, plasmonic nanoantennas for signal enhancements, the use of optical force for nanoparticle manipulation as well as the design of active devices for ultra-sensitive detection. Furthermore, we provide an outlook on the exciting capabilities of functionalized high-Q microcavities in the life sciences.