非线性介质对粒子场同轴全息成像的影响

 通过理论分析和实验验证，研究了非线性折射率介质对粒子场同轴全息成像的影响。利用粒子场同轴夫琅和费全息记录和光束在非线性介质中传输的波动方程，得出了光波的复振幅和强度分布。数值模拟了介质在线性和非线性时全息记录的情况，并进行了实验验证。结果表明：光波经非线性介质传输后，全息干板记录到粒子场的再现图像，这为高功率激光应用于全息照相提供参考，原因是高功率脉冲激光聚焦易击穿介质产生非线性传输。

Influence of nonlinear medium on in-line holographic imaging of particle

The influence of nonlinear refraction in a medium on the in-line holographic imaging of the particle was investigated theoretically and experimentally. According to the in-line Fraunhofer holographic imaging of the particle and nonlinear paraxial wave equation, the complex amplitude and intensity of the diffracted field in the holographic plate were derived. The hologram transferred from the linear and nonlinear medium were also studied numerically and experimentally. The results indicate that the hologram transferred from the nonlinear medium was different to that from the linear medium. As the medium is disrupted easily by high-power pulsed laser,this phenomenon is a reference to the application of the high-power pulsed laser.