Weak polarization-optical responses of diluted magnetic nanofluid probed by laser radiation with polarization modulation
https://doi.org/10.17586/2220-8054-2021-12-1-60-64
Abstract
A sensitive laser registration of weak polarization-optical responses was used for the investigations of dilute magnetic nanofluids. Criteria for weak and strong signals for probing of sample by laser radiation with deep modulation of polarization were considered. The magneto-optical responses of a kerosene-based fluid with magnetite nanoparticles were investigated over a wide (five orders of magnitude) range of concentrations. Weak polarization responses for this nanofluid were observed at record low volume concentrations of nanoparticles up to 10−7.
Supporting agencies: This work was performed in the framework of State tasks 075-01073-20-00 on the topic No. 0074-2019-0007 of the Ministry of Science and Higher Education of the Russian Federation.
About the Authors
Ya. A. Fofanov
Institute for Analytical Instrumentation RAS
Russian Federation
Russian Federation
26 Rizhsky ave., St. Petersburg, 190103, box 207
I. V. Pleshakov
Ioffe Institute
Russian Federation
Russian Federation
26 Politechnicheskaya str., St. Petersburg, 194021
A. V. Prokof’ev
Ioffe Institute
Russian Federation
Russian Federation
26 Politechnicheskaya str., St. Petersburg, 194021
E. E. Bibik
St. Petersburg State Institute of Technology (Technical University)
Russian Federation
Russian Federation
26 Moskovsky ave., 190013, St. Petersburg
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Review
For citations:
Fofanov Ya.A., Pleshakov I.V., Prokof’ev A.V., Bibik E.E. Weak polarization-optical responses of diluted magnetic nanofluid probed by laser radiation with polarization modulation. Nanosystems: Physics, Chemistry, Mathematics. 2021;12(1):60-64. https://doi.org/10.17586/2220-8054-2021-12-1-60-64
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