Cobalt ferrite nanoparticles polymer composites based all-optical magnetometer

Alejandra Lopez-Santiago, Hannah R. Grant, Palash Gangopadhyay, Ramakrishna Voorakaranam, Robert A. Norwood, N. Peyghambarian

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


A method has been developed to prepare cobalt ferrite particle core polymer shell nanoparticles. These engineered nanoparticles can be further embedded into a polymer host matrix to develop highly transparent polymer based magneto-optic materials. A proof-of-principle all-optical magnetometer has been constructed based on the cobalt ferrite core polymer shell based nanocomposite material. A noise equivalent magnetic field sensitivity of 50nT/vHz was observed using a 3μT 500Hz control magnetic field.

Original languageEnglish (US)
Pages (from-to)978-986
Number of pages9
JournalOptical Materials Express
Issue number7
StatePublished - Jul 2012

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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