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Induced spatiotemporal modulation instability in a noninstantaneous self-defocusing medium
Wen-Han Chu1, Chien-Chung Jeng, Chao-Hsian Chen
1Department of Physics, National Taiwan University, Taipei 106, Taiwan.
Optics Letters
|August 12, 2005
Abstract:
We demonstrate theoretically and experimentally that induced spatiotemporal modulation instability can exist in a self-defocusing medium if the nonlinearity is noninstantaneous. We predict the growth rate as a function of the spatial and temporal frequencies of the modulation and the response time of the nonlinearity and confirm it by our experiments.
