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Highly sensitive laser-based sensor for nanoparticles in air using a dual-ring-mirror setup |
Optics Letters, Vol. 37, Issue 14, pp. 2847-2849 (2012)
http://dx.doi.org/10.1364/OL.37.002847
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Abstract
One of the most frequently applied techniques to detect nanoparticles in air is analyzing laser light scattering. This technique is very flexible while offering high accuracy and reliability. Yet its functionality highly depends on the sensitivity of the measurement system components. Especially for miniaturized sensor devices with limited space, additional techniques are needed to preserve high intensity of scattered light. In our work we demonstrate a technique using two spherical ring mirrors to identify nanoparticles with diameters below 100 nm in a forward-scattering setup. We succeeded measuring polystyrene particles with diameters of 92 nm with a signal-to-noise-ratio of more than 10.
© 2012 Optical Society of America
OCIS Codes
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(220.4830) Optical design and fabrication : Systems design
(290.5850) Scattering : Scattering, particles
(290.2558) Scattering : Forward scattering
ToC Category:
Scattering
History
Original Manuscript: February 13, 2012
Revised Manuscript: May 14, 2012
Manuscript Accepted: May 28, 2012
Published: July 10, 2012
Citation
Robert Schrobenhauser, Rainer Strzoda, Maximilian Fleischer, and Markus-Christian Amann, "Highly sensitive laser-based sensor for nanoparticles in air using a dual-ring-mirror setup," Opt. Lett. 37, 2847-2849 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-14-2847
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