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Proceedings Paper

New optics method of low-concentration particles detection in liquids
Author(s): Stanislav F. Rastopov
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Paper Abstract

A new highly sensitive method of detection of the Browns or bio-particles in liquids, based on the fluctuations intensity spectroscopy, is described. A special scheme of disposition of photodetectors has made it possible to significantly reduce noise due to intensity fluctuations of probe laser radiation. As a result the detection sensitivity increases and is mainly restricted by electronical noise. We demonstrate the high sensitivity of the method allowed to detect the presence of viable micro-organisms in natural water reservoirs. The optical scheme of the device and preliminary experimental data are presented.

Paper Details

Date Published: 21 July 1994
PDF: 6 pages
Proc. SPIE 2136, Biochemical Diagnostic Instrumentation, (21 July 1994); doi: 10.1117/12.180790
Show Author Affiliations
Stanislav F. Rastopov, General Physics Institute (Russia)

Published in SPIE Proceedings Vol. 2136:
Biochemical Diagnostic Instrumentation
Robert F. Bonner; Gerald E. Cohn; Thomas M. Laue; Alexander V. Priezzhev, Editor(s)

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