Two-Photon Spectroscopy in Faraday Configuration I.
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概要
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Two kinds of nonlinear optical effect in a material under the influence of a static magnetic field are theoretically discussed, that is, two-photon transition between magnetic energy levels and a light-intensity-dependent Faraday rotation. Optical anisotropy induced by an intense light beam in a material is compared with that due to a magnetic field. A circularly polarized light acts as an effective magnetic field. Properties of the conductivities describing these nonlinear effects are considered from the quantum mechanical expression of the conductivity tensor. In II-VI semiconductors, the symmetric-tensor component of the nonlinear conductivity induced by the optical field of several tens of megawatts is the comparable order of magnitude to the antisymmetric-tensor component of the linear conductivity due to the magnetic field of several hundred gausses. The nonlinear Faraday rotation is proportional to the magnetization in magnetic materials.
- 社団法人日本物理学会の論文
- 1970-10-05
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