Noise Characteristics of the Optical Response of Ferrofluids to a Magnetic Field

被引：0
|
作者：
Prokof'ev, A. V. [1 ]
Pleshakov, I. V. [1 ,2 ]
Shlyagin, M. [3 ]
Agruzov, P. M. [1 ]
Bibik, E. E. [4 ]
Kuz'min, Yu. I. [1 ]
机构：
[1] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[2] Peter Great St Petersburg Polytech Univ, St Petersburg 195251, Russia
[3] Ctr Invest Cient & Educ Super Ensenada, Ensenada, Baja California, Mexico
[4] St Petersburg State Inst Technol, St Petersburg 190013, Russia
来源：
TECHNICAL PHYSICS LETTERS | 2019年 / 45卷 / 08期
关键词：
magnetooptics; ferrofluid; optical fiber; optical noise; FIBER;
D O I：
10.1134/S1063785019080121
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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.
引用
收藏
页码：743 / 745
页数：3
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