Random laser spectroscopy for nanoscale perturbation sensing
Date of this Version
8-2010Citation
https://doi.org/10.1364/OL.35.002624
This document has been peer-reviewed.
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.
Discipline(s)
Engineering | Nanoscience and Nanotechnology
Comments
Qinghai Song, Shumin Xiao, Zhengbin Xu, Vladimir M. Shalaev, and Young L. Kim. Random laser spectroscopy for nanoscale perturbation sensing. Optics Letters Vol. 35, Issue 15, pp. 2624-2626 (2010).
https://doi.org/10.1364/OL.35.002624