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Highly sensitive laser-based sensor for nanoparticles in air using a dual-ring-mirror setup.
Schrobenhauser, Robert; Strzoda, Rainer; Fleischer, Maximilian; Amann, Markus-Christian.
Afiliação
  • Schrobenhauser R; Siemens AG, Corporate Technology, Otto-Hahn-Ring 6, 81739 Munich, Germany. robert.schrobenhauser@wsi.tum.de
Opt Lett ; 37(14): 2847-9, 2012 Jul 15.
Article em En | MEDLINE | ID: mdl-22825154
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.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Diagnostic_studies Idioma: En Ano de publicação: 2012 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Diagnostic_studies Idioma: En Ano de publicação: 2012 Tipo de documento: Article