Volume 111, Number 5, September 2015
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||18 September 2015|
Transient magneto-optic effects in ferrofluid-filled microstructured fibers in pulsed magnetic field
1 Ioffe Institute - Politekhnicheskaya 26, 194021 Saint-Petersburg, Russia
2 Saint Petersburg State Institute of Technology - Moskovsky av. 26, 190013 Saint-Petersburg, Russia
3 CICESE - carretera Ensenada-Tijuana 3918, 22860 Ensenada, Mexico
4 Peter the Great St. Petersburg Polytechnic University - Politekhnicheskaya 29, 19525 Saint-Petersburg, Russia
5 ITMO University - Kronverksky av. 49, 197101 Saint-Petersburg, Russia
Received: 28 May 2015
Accepted: 20 August 2015
Transient magneto-optic effects in ferrofluid-filled microstructured optical fibers are considered. Magneto-optic responses of two types, i.e., an even and an odd one, were observed in the longitudinal geometry of an applied pulsed magnetic field for the kerosene-based Fe3O4 ferrofluid with nanoparticles. For the first time a submicrosecond response time limited by the rise time of the applied field pulse was demonstrated for the odd magneto-optic effect in an all-fiber system, and responses of the even and odd magneto-optic effects were separated. A strong influence of the pulse width on the relaxation time of the even response is attributed to the formation of particle aggregates.
PACS: 75.50.Mm – Magnetic liquids / 42.81.Cn – Fiber testing and measurement of fiber parameters / 85.70.Sq – Magnetooptical devices
© EPLA, 2015
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