| Summary: | 碩士 === 國立臺灣大學 === 物理研究所 === 100 === Using light to control the fluid flow is a very interesting issue. In this dissertation, we want to simplify this issue. First, the fluid flow can be treated as a non-rest frame. Second, The response of light-controlled fluid flow is noninstantaneous. Final, we want to use low optical power to control fluid flow in the future. For these reasons, we can observe the low optical power soliton in a laterally shifting noninstantaneous photorefractive crystal to simulate the controlling of the refractive index and soliton stability in the fluid flow. As a result, we present the experimental observation of optical soliton in a non-rest frame in this dissertation.
We use the photorefractive crystal on linear stage to be a non-rest frame, and move the linear stage with a laterally shifting speed. After that, we observe the behavior of solitons versus different lateral shift speed of the crystal. We find there are three phase with different velocity region in this observation. Finally, we attempt to explain these results.
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