Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
851527 | Optik - International Journal for Light and Electron Optics | 2012 | 4 Pages |
Abstract
We performed the femtosecond nondegenerate optical Kerr shutter (OKS) measurements in a 10-mm-thick optical glass. The time-resolved OKS signals showed an obvious asymmetry and a large broadening with respect to that for thin samples. The time-resolved OKS signals in samples with different thicknesses showed that, the temporal broadening of the OKS signals was attributed to the group velocity mismatch between pump and probe beams of different wavelengths. By imaging the filament induced inside the glass, we attributed the asymmetry of the time-resolved OKS signals to the focusing position change of pump beam caused by self-focusing and re-focusing effect.
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Authors
Lihe Yan, Sen Jia, Jinhai Si, Feng Chen, Wenhui Yi, Xun Hou,