Nonlinear magneto-optical spectroscopy of YCrO3 and GaFeO 3

K. Eguchi, Y. Katayama, Y. Kawabe, E. Hanamura

研究成果: Contribution to journalConference article査読

7 被引用数 (Scopus)

抄録

Second harmonic generation (SHG) was observed from yttrium orthochromite (YCrO3 crystals with centrosymmetric structure. The origin of the SHG was determined to be a magnetic-dipole transition considering the resonant structure of SHG spectra and its polarization dependence. The intensity of SHG shows the drastic change at the Néel temperature under magnetic field and this fact suggests the effects from magnetic ordering. Along with the spectrum of the SHG intensity, phase of the nonlinear susceptibility was measured by analyzing the polarization characteristics of superposed fields from the sample and reference. The result shows that axial i-type χ(2) value is pure imaginary at the peak wavelength. Gallium ferrite (GaFeO3) has simultaneously four types of nonlinear optical tensors including polar i-, axial i-, polar c- and axial c-types. We observed SHG originating from c-type components by employing the experimental configuration where each contribution is separable. Structures of spectra and their relation to magnetic properties are discussed.

本文言語英語
論文番号59240X
ページ(範囲)1-11
ページ数11
ジャーナルProceedings of SPIE - The International Society for Optical Engineering
5924
DOI
出版ステータス出版済み - 2005
外部発表はい
イベントComplex Mediums VI: Light and Complexity - San Diego, CA, 米国
継続期間: 7 31 20058 2 2005

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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