Optical second harmonic generation in centrosymmetric antiferromagnetic NiO

M Fiebig; D Froehlich; Th. Lottermoser; V. V. Pavlov; R. V. Pisarev; J. H. Weber

doi:10.1117/12.475340

12 July 2002 Optical second harmonic generation in centrosymmetric antiferromagnetic NiO

M Fiebig, D Froehlich, Th. Lottermoser, V. V. Pavlov, R. V. Pisarev, J. H. Weber

Proceedings Volume 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions; (2002) https://doi.org/10.1117/12.475340
Event: XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, 2001, Kazan, Russian Federation

Abstract

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.

Citation Download Citation

M Fiebig, D Froehlich, Th. Lottermoser, V. V. Pavlov, R. V. Pisarev, and J. H. Weber "Optical second harmonic generation in centrosymmetric antiferromagnetic NiO", Proc. SPIE 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, (12 July 2002); https://doi.org/10.1117/12.475340

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