Simulation of One-Dimensional Optical Solitons in a Non-rest Frame
碩士 === 國立臺灣大學 === 物理研究所 === 100 === In this thesis, we attempt to analyze whether spatial solitons can be formed in a non-rest frame. In our simulation, we first form a photorefractive screen soliton in a non-instantaneously nonlinear medium (SBN61 crystal) then shift the medium laterally and observ...
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| Format: | Others |
| Language: | en_US |
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2012
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| Online Access: | http://ndltd.ncl.edu.tw/handle/15690503962492025774 |
| Summary: | 碩士 === 國立臺灣大學 === 物理研究所 === 100 === In this thesis, we attempt to analyze whether spatial solitons can be formed in a non-rest frame. In our simulation, we first form a photorefractive screen soliton in a non-instantaneously nonlinear medium (SBN61 crystal) then shift the medium laterally and observe the dynamics of solitons in this non-rest frame.
In Chapter 1, we review the concept of optical spatial solitons and the photorefractive saturable nonlinearity. In Chapter 2, the derivation of the nonlinear Schrödinger equation and nonlinear Schrödinger equation are introduced. In Chapter 3, we show the simulation results and the comparison to the experiment. We find that solitons can be formed in the non-rest frame and the trajectories are parabolic. The stability of solitons depends on both the relaxation time and laterally shifting speed of the medium.
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