Spectroscopic detection of magneto-optical hysteresis in a single magnetic field sweep by faraday cell modulation

Shin Saito, Tatsuaki Sasaki, Sakae Meguro, Guang Xiang Du, Migaku Takahashi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A rapid magneto-optical (MO) spectrometer is introduced. In conventional MO measurements, a monochromator produces quasimonochromatic incident light. The MO spectrum is then found by measuring the hysteresis loop at each wavelength in small steps, which is time consuming. In contrast, the new system uses 1) incident white light, 2) polarization rotation by a Faraday cell and spectroscopic detection using an area sensor, and 3) subtraction of spectra for small changes of polarization. By this method, an MO spectrum can be measured in only a few minutes with a single sweep of the magnetic field, enabling rapid exploration of the magnetic properties of a wide variety of materials.

Original languageEnglish
Article number6559185
Pages (from-to)3537-3540
Number of pages4
JournalIEEE Transactions on Magnetics
Volume49
Issue number7
DOIs
Publication statusPublished - 2013 Aug 2

Keywords

  • Faraday cell modulation
  • Faraday effect
  • Kerr effect
  • localized surface plasmon resonance
  • magneto-optical spectrum

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Spectroscopic detection of magneto-optical hysteresis in a single magnetic field sweep by faraday cell modulation'. Together they form a unique fingerprint.

Cite this