Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Magnetization-induced second harmonic generation in a polar ferromagnet.

Y Ogawa1, Y Kaneko, J P He

  • 1Spin Superstructure Project, ERATO, Japan Science and Technology Corporation (JST), AIST Tsukuba Central 4, Tsukuba 305-8562, Japan.

Physical Review Letters
|March 6, 2004
PubMed
Summary

Researchers studied second harmonic generation (SHG) in Gallium Iron Oxide (GaFeO3). They observed a massive nonlinear Kerr rotation, enabling magnetic domain visualization below 205 K.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

All-optical control of antiferromagnetic domains via an inverse optical magnetoelectric effect.

Nature materials·2026
Same author

Nonreciprocal Directional Dichroism in Magnetoelectric Spin Glass.

Physical review letters·2022
Same author

Particle-size dependent structural transformation of skyrmion lattice.

Nature communications·2020
Same author

Motion tracking of 80-nm-size skyrmions upon directional current injections.

Science advances·2020
Same author

[Classification of the types of pediatric posterior fossa brain tumors based on routine MRI using wavelet transformation analysis of whole tumor].

Zhonghua yi xue za zhi·2020
Same author

Room-Temperature Low-Field Colossal Magnetoresistance in Double-Perovskite Manganite.

Physical review letters·2019

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Nonlinear Optics

Background:

  • Spontaneous magnetization in polar ferromagnetic crystals can induce nonlinear optical phenomena.
  • Gallium Iron Oxide (GaFeO3) is a polar ferromagnetic material with potential applications in spintronics and optical devices.

Purpose of the Study:

  • To investigate second harmonic generation (SHG) induced by spontaneous magnetization in GaFeO3.
  • To explore the temperature dependence of nonlinear optical properties and magnetic domain visualization.

Main Methods:

  • Experimental investigation of magnetization-induced second harmonic generation (SHG).
  • Measurement of nonlinear Kerr rotation as a function of temperature.
  • Spectroscopic analysis of SHG signals.

Related Experiment Videos

Main Results:

  • A gigantic nonlinear Kerr rotation, reaching 73 degrees at 100 K, was observed below the magnetic transition temperature (approx. 205 K).
  • The large Kerr rotation allows for effective visualization of magnetic domains in GaFeO3.
  • Spectra indicate a two-photon resonant electronic process involving Fe3+ ions.

Conclusions:

  • Spontaneous magnetization in GaFeO3 leads to significant nonlinear optical effects.
  • GaFeO3 is a promising material for magnetic domain imaging applications.
  • The observed SHG mechanism is attributed to a two-photon resonant process.