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Control of magnetic contrast with nonlinear magneto-plasmonics

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep06191· OSTI ID:1624736
 [1];  [2];  [2];  [3]
  1. College of William and Mary, Williamsburg, VA (United States). Dept. of Applied Science; DOE/OSTI
  2. Naval Research Lab. (NRL), Washington, DC (United States). Materials Science and Technology Division
  3. College of William and Mary, Williamsburg, VA (United States). Dept. of Applied Science
The interaction between surface plasmons (SP) and magnetic behavior has generated great research interest due to its potential for future magneto-optical devices with ultra-high sensitivity and ultra-fast switching. Here we combine two surface sensitive effects: magnetic second-harmonic generation (MSHG) and SP to enhance the detection sensitivity of the surface magnetization in a single-crystal iron film. We show that the MSHG signal can be significantly enhanced by SP in an attenuated total reflection (ATR) condition, and that the magnetic contrast can be varied over a wide range by the angle-of-incidence. Furthermore, the magnetic contrast of transverse and longitudinal MSHG display opposite trends, which originates from the change of relative phase between MSHG components. This new effect enhances the sensing of magnetic switching, which has potential usage in quaternary magnetic storage systems and bio-chemical sensors due to its very high surface sensitivity and simple structure.
Research Organization:
College of William and Mary, Williamsburg, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
FG02-04ER46127
OSTI ID:
1624736
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 4; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (7)

Dramatically Enhanced Spin Dynamo with Plasmonic Diabolo Cavity journal July 2017
Determination of magnetic anisotropy constants and domain wall pinning energy of Fe/MgO(001) ultrathin film by anisotropic magnetoresistance journal September 2015
Epitaxial growth and magnetic properties of ultraviolet transparent Ga2O3/(Ga1−xFex)2O3 multilayer thin films journal April 2016
Enhanced magneto-optical effects in composite coaxial nanowires embedded with Ag nanoparticles journal July 2016
Magneto-Plasmonic Nanoantennas: Basics and Applications (Review) preprint January 2016
Towards the nonlinear acousto-magneto-plasmonics journal August 2016
Nonlinear magneto-plasmonics journal January 2015

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