具有永久偶极子的共振原子薄膜的快速电磁响应
Fast electromagnetic response of a thin film of resonant atoms with permanent dipole
摘要：
研究了超短脉冲通过含有共振原子（二能级原子）的介质薄膜的传输问题。假设薄膜的宽度小于场的波长，我们可以求解波动方程，并将问题归结为描述共振原子的广义布洛赫方程组。我们计算固定的解决方案，为一个恒定的照射的电影。叠加一个小振幅的线性波，我们计算反射和透射系数。从这些，然后可以推导出模型的不同参数。我们相信这种技术可以用于实验中，以获得介质原子和弛豫参数。
英文摘要：
We consider the propagation of extremely short pulses through a dielectric thin film containing resonant atoms (two level atoms) with permanent dipole. Assuming that the film width is less than the field wave length, we can solve the wave equation and reduce the problem to a system of generalized Bloch equations describing the resonant atoms. We compute the stationary solutions for a constant irradiation of the film. Superimposing a small amplitude linear wave we compute the reflection and transmission coefficients. From these, one can then deduce the different parameters of the model. We believe this technique could be used in experiments to obtain the medium atomic and relaxation parameters.
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