A non-thermal ultrafast magneto-optical response of antiferromagnetic NiO to irradiation with an intense optical pulse was observed. With temporally overlapping pump and probe pulses, the circularly polarized pump pulse induced rotation of the linear polarization of the probe pulse along with two-photon absorption and crossphase modulation. The sign of the rotation of the linear polarization reversed with the reversal of the pump helicity. This non-resonant phenomenon is described as a third-order nonlinear optical effect and is ascribed to an inverse Faraday effect: photoinduced magnetization.
|Number of pages||4|
|Journal||Journal of the Optical Society of America B: Optical Physics|
|Publication status||Published - Jul 1 2010|
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics