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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 2, Iss. 6 — Jun. 1, 2012
  • pp: 864–871

Tuning the magneto-optic response of maghemite doped poly(phenylmethylvinyl siloxane) through electric field based nanoparticle orientation

Ganapathy Kumar, Satish M. Mahajan, Holly A. Stretz, and Sanjay K. Apte  »View Author Affiliations

Optical Materials Express, Vol. 2, Issue 6, pp. 864-871 (2012)

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Maghemite nanoparticles were doped in optical poly phenyl methyl vinyl siloxane and oriented by externally applied electric fields before curing. Consequent change in the morphology of the nanocomposite was observed and characterized using small angle x-ray scattering (SAXS). After curing, Faraday rotation measurements were carried out at 632.8 nm. Electric field based alignment in addition to presence of the nanodopants enhanced the magneto-optic sensitivity by 14.3-48.6% for the polymer nanocomposites. A linear trend was observed between orienting electric fields and measured Faraday rotation angles. Limits on applicable electric fields for dopant concentrations were also ascertained from the magneto-optic response.

© 2012 OSA

OCIS Codes
(160.3820) Materials : Magneto-optical materials
(230.3810) Optical devices : Magneto-optic systems

ToC Category:
Magneto-optical Materials

Original Manuscript: April 30, 2012
Revised Manuscript: May 20, 2012
Manuscript Accepted: May 21, 2012
Published: May 24, 2012

Ganapathy Kumar, Satish M. Mahajan, Holly A. Stretz, and Sanjay K. Apte, "Tuning the magneto-optic response of maghemite doped poly(phenylmethylvinyl siloxane) through electric field based nanoparticle orientation," Opt. Mater. Express 2, 864-871 (2012)

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