Induced spatiotemporal modulation instability in a noninstantaneous self-defocusing medium |
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| Authors: | Chu Wen-Han Jeng Chien-Chung Chen Chao-Hsian Liu Yi-Hsin Shih Ming-Feng |
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| Institution: | Department of Physics, National Taiwan University, Taipei 106, Taiwan. |
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| 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. |
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