Magnetic quenching of photonic activity in Fe3O4-elastomer composite

Danhao Ma; Dustin T. Hess; Pralav P. Shetty; Kofi W. Adu; Richard C. Bell; Mauricio Terrones

doi:10.1117/1.JNP.10.016017

18 March 2016 Magnetic quenching of photonic activity in Fe₃O₄-elastomer composite

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

Author Affiliations +

Journal of Nanophotonics, Vol. 10, Issue 1, 016017 (March 2016). https://doi.org/10.1117/1.JNP.10.016017

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.

Citation Download Citation

Danhao Ma, Dustin T. Hess, Pralav P. Shetty, Kofi W. Adu, Richard C. Bell, and Mauricio Terrones "Magnetic quenching of photonic activity in Fe₃O₄-elastomer composite," Journal of Nanophotonics 10(1), 016017 (18 March 2016). https://doi.org/10.1117/1.JNP.10.016017

Published: 18 March 2016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $24.00

Non-members: $28.00 ADD TO CART

JOURNAL ARTICLE
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Magnetism

Composites

Iron

Particles

Quenching (fluorescence)

Nanoparticles

Solids

Show All Keywords

Keywords/Phrases

Search In:

Publication Years