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This article is cited in 2 scientific papers (total in 2 papers)
Noise characteristics of the optical response of ferrofluids to a magnetic field
A. V. Prokof'eva, I. V. Pleshakovab, M. Shlyaginc, P. M. Agruzova, E. E. Bibikd, Yu. I. Kuzmina a Ioffe Institute, St. Petersburg
b Peter the Great St. Petersburg Polytechnic University
c Centro de Investigación Científica y de Educación Superior de Ensenada
d State Technological Institute of St. Petersburg (Technical University)
Abstract:
The noise generated by different ferrofluid samples when probed by the fiber-optic method has been investigated. It is shown that switching on a magnetic field significantly increases the noise, which is presumably related to fluctuations accompanying the process of aggregate formation. The dependences of the rms noise on the field strength and probe-light intensity have been experimentally determined. A slow decrease in the rms noise after switching off the magnetic field has been found, which indicates relaxation of the aggregates formed by the field.
Keywords:
magnetooptics, ferrofluids, optical fiber, optical noise.
Received: 22.02.2019 Revised: 19.03.2019 Accepted: 29.04.2019
Citation:
A. V. Prokof'ev, I. V. Pleshakov, M. Shlyagin, P. M. Agruzov, E. E. Bibik, Yu. I. Kuzmin, “Noise characteristics of the optical response of ferrofluids to a magnetic field”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 45:15 (2019), 3–5; Tech. Phys. Lett., 45:8 (2019), 743–745
Linking options:
https://www.mathnet.ru/eng/pjtf5355 https://www.mathnet.ru/eng/pjtf/v45/i15/p3
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