Magnetically induced Mie resonance in a magnetic sphere suspended in a ferrofluid
JOSA A, Vol. 27, Issue 4, pp. 873-877 (2010)
http://dx.doi.org/10.1364/JOSAA.27.000873
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Abstract
Mie scattering functions for a magnetizable sphere whose relative refractive index is dependent on the externally applied magnetic field are computed for four different sizes of the sphere. It is found that Mie resonances are observed at certain critical fields when the incident light is polarized with its electric vector perpendicular to the applied field. The width of resonance as well as the critical fields shifts with the increase in size of the spheres. Results are compared with the experimentally observed scattering effects in a dispersion of magnetite spheres in a ferrofluid.
© 2010 Optical Society of America
OCIS Codes
(160.3820) Materials : Magneto-optical materials
(290.4020) Scattering : Mie theory
(290.5850) Scattering : Scattering, particles
(290.2558) Scattering : Forward scattering
(290.5825) Scattering : Scattering theory
(290.5855) Scattering : Scattering, polarization
ToC Category:
Scattering
History
Original Manuscript: January 4, 2010
Revised Manuscript: February 12, 2010
Manuscript Accepted: February 13, 2010
Published: March 25, 2010
Citation
Hem Bhatt, Rajesh Patel, and R. V. Mehta, "Magnetically induced Mie resonance in a magnetic sphere suspended in a ferrofluid," J. Opt. Soc. Am. A 27, 873-877 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-4-873
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