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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 5, Iss. 12 — Sep. 30, 2010

Random laser spectroscopy for nanoscale perturbation sensing

Qinghai Song, Shumin Xiao, Zhengbin Xu, Vladimir M. Shalaev, and Young L. Kim  »View Author Affiliations


Optics Letters, Vol. 35, Issue 15, pp. 2624-2626 (2010)
http://dx.doi.org/10.1364/OL.35.002624


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Abstract

We report a spectroscopic method using coherent random lasers for a simple, yet nanoscale, sensing approach. Unique spectral properties of coherent random laser emission can be detectably altered when introducing nanoscale perturbations to a simple nanocomposite film that consists of dielectric nanospheres and laser-dye-doped polymer to serve as a transducer. Random lasing action provides a means to amplify subtle perturbations to readily detectable spectral shifts in multiple discrete emission peaks. Owing to several advantages, such as large-area detection, narrow and multiple emission peaks, straightforward detection, and simple fabrication, random laser spectroscopy has the potential for ultrasensitive, yet simple, biosensors in various applications.

© 2010 Optical Society of America

OCIS Codes
(140.4780) Lasers and laser optics : Optical resonators
(290.4210) Scattering : Multiple scattering
(280.1415) Remote sensing and sensors : Biological sensing and sensors

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 1, 2010
Revised Manuscript: July 5, 2010
Manuscript Accepted: July 6, 2010
Published: July 29, 2010

Virtual Issues
Vol. 5, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Qinghai Song, Shumin Xiao, Zhengbin Xu, Vladimir M. Shalaev, and Young L. Kim, "Random laser spectroscopy for nanoscale perturbation sensing," Opt. Lett. 35, 2624-2626 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-35-15-2624

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