Optical second harmonic generation in centrosymmetric antiferro magnetic NiO

被引：2

作者：

Fiebig, M ^{[1
]}

Fröhlich, D ^{[1
]}

Lottermoser, T ^{[1
]}

Pavlov, VV ^{[1
]}

Pisarev, RV ^{[1
]}

Weber, HJ ^{[1
]}

机构：

[1] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany

来源：

XI FEOFILOV SYMPOSIUM ON SPECTROSCOPY OF CRYSTALS ACTIVATED BY RARE-EARTH AND TRANSITION METAL IONS | 2002年 / 4766卷

关键词：

magnetic structure; nonlinear optics; second harmonic generation; centrosymmetry; NiO; magneto-optics; domains; antiferromagnetism; transition metals;

D O I：

10.1117/12.475340

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Optical second harmonic generation (SHG) in NiO in spectroscopy and topography experiments reveals a pronounced signal below the Neel temperature which couples quadratically to the antiferromagnetic order parameter. The SH process originates in combined magnetic-dipole and electric-dipole transitions between the (3d)(8) levels of the Ni2+ ion in the crystal field. It is greatly enhanced by being resonant both in the incoming and the outgoing light waves. The polarization dependence reveals a sensitivity of the SH process to both T and S domains which are investigated in imaging experiments.

引用

页码：238 / 247

页数：10

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