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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 10 — Apr. 1, 2014
  • pp: 2087–2092

Faraday rotation of cobalt ferrite nanoparticle polymer composite films at cryogenic temperatures

Veysi Demir, Palash Gangopadhyay, Robert A. Norwood, and Nasser Peyghambarian  »View Author Affiliations

Applied Optics, Vol. 53, Issue 10, pp. 2087-2092 (2014)

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This paper investigates the behavior of the Verdet constant for cobalt ferrite (CoFe2O4) nanoparticles polymer composite films at low temperatures using a 532 nm laser source. An experimental setup for Faraday rotation (FR) at low temperatures is introduced and FRs were measured at various temperatures. Verdet constants were deduced from the paramagnetic model for terbium gallium garnet glass where 4× improvement was observed at 40° K for CoFe2O4 composite film.

© 2014 Optical Society of America

OCIS Codes
(160.3820) Materials : Magneto-optical materials
(230.2240) Optical devices : Faraday effect
(240.0310) Optics at surfaces : Thin films

ToC Category:
Optical Devices

Original Manuscript: December 4, 2013
Revised Manuscript: February 13, 2014
Manuscript Accepted: February 17, 2014
Published: March 27, 2014

Veysi Demir, Palash Gangopadhyay, Robert A. Norwood, and Nasser Peyghambarian, "Faraday rotation of cobalt ferrite nanoparticle polymer composite films at cryogenic temperatures," Appl. Opt. 53, 2087-2092 (2014)

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