Magnetic quenching of photonic activity in Fe3O4-elastomer composite

Danhao Ma, Dustin T. Hess, Pralav P. Shetty, Kofi W. Adu, Richard Curtis Bell, Mauricio Terrones Maldonado

Research output: Contribution to journalArticle

Abstract

We report a quenching phenomenon within the visible region of the electromagnetic spectrum in the photonic response of a passive Fe3O4-silicone elastomer composite film due to magnetically aligned Fe3O4 nanoparticles. We performed systematic studies of the polarization dependence, the effect of particle size, and an in- and out-of-plane particle alignment on the optical response of the Fe3O4-silicone elastomer composites using a UV/vis/NIR spectrometer. We observed systematic redshifts in the response of the out-of-plane composite films with increasing particle alignment and weight that are attributed to dipole-induced effects. There were no observable shifts in the spectra of the in-plane films, suggesting the orientation of the magnetic dipole and the induced electric dipole play a crucial role in the optical response. A dramatic suppression to near quenching of the photonic response occurred in films containing moderate concentrations of the aligned nanoparticles. This is attributed to the interplay between the intra- and the interparticle dipoles. This occurred even when low magnetic fields were used during the curing process, suggesting that particle alignment and particle size limitation are critical in the manipulation of the photonic properties. A dipole approximation model is used to explain the quenching phenomenon. An active system of such a composite has a potential application in magneto-optic switches.

Original languageEnglish (US)
Article number016017
JournalJournal of Nanophotonics
Volume10
Issue number1
DOIs
StatePublished - Jan 1 2016

Fingerprint

Elastomers
elastomers
Photonics
Quenching
Silicone Elastomers
quenching
Composite films
photonics
Silicones
composite materials
Composite materials
Particle size
Nanoparticles
alignment
silicones
dipoles
Magnetooptical effects
Curing
Spectrometers
nanoparticles

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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title = "Magnetic quenching of photonic activity in Fe3O4-elastomer composite",
abstract = "We report a quenching phenomenon within the visible region of the electromagnetic spectrum in the photonic response of a passive Fe3O4-silicone elastomer composite film due to magnetically aligned Fe3O4 nanoparticles. We performed systematic studies of the polarization dependence, the effect of particle size, and an in- and out-of-plane particle alignment on the optical response of the Fe3O4-silicone elastomer composites using a UV/vis/NIR spectrometer. We observed systematic redshifts in the response of the out-of-plane composite films with increasing particle alignment and weight that are attributed to dipole-induced effects. There were no observable shifts in the spectra of the in-plane films, suggesting the orientation of the magnetic dipole and the induced electric dipole play a crucial role in the optical response. A dramatic suppression to near quenching of the photonic response occurred in films containing moderate concentrations of the aligned nanoparticles. This is attributed to the interplay between the intra- and the interparticle dipoles. This occurred even when low magnetic fields were used during the curing process, suggesting that particle alignment and particle size limitation are critical in the manipulation of the photonic properties. A dipole approximation model is used to explain the quenching phenomenon. An active system of such a composite has a potential application in magneto-optic switches.",
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Magnetic quenching of photonic activity in Fe3O4-elastomer composite. / Ma, Danhao; Hess, Dustin T.; Shetty, Pralav P.; Adu, Kofi W.; Bell, Richard Curtis; Terrones Maldonado, Mauricio.

In: Journal of Nanophotonics, Vol. 10, No. 1, 016017, 01.01.2016.

Research output: Contribution to journalArticle

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T1 - Magnetic quenching of photonic activity in Fe3O4-elastomer composite

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AU - Hess, Dustin T.

AU - Shetty, Pralav P.

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AU - Bell, Richard Curtis

AU - Terrones Maldonado, Mauricio

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