Specular reflection of matter waves from a rough mirror.
Specular reflection of matter waves from a rough mirror.
复制标题
物质波从粗糙镜子的镜面反射。
DOI：
--
复制
发表时间：
2002
影响因子：
8.6
通讯作者：
A. Aspect
中科院分区：
文献类型：
--
作者：
V. Savalli;David Stevens;Jérôme Estève;P. Featonby;V. Josse;Nathalie Westbrook;Christoph I. Westbrook;A. Aspect
利用速度选择性拉曼跃迁，对原子在倏逝波反射镜上的反射镜面性进行了高分辨率的研究。我们观察到一个双重结构的反射后的速度分布：一个峰值一致的镜面反射和漫反射基座的贡献迅速减少，增加失谐。漫反射是由于两种不同的效应：倏逝波中的自发辐射和振幅小于反射原子的布罗意波长的倏逝波势中的粗糙度。
We present a high resolution study of the specularity of the atomic reflection from an evanescent wave mirror using velocity selective Raman transitions. We observed a double structure in the velocity distribution after reflection: a peak consistent with specular reflection and a diffuse reflection pedestal whose contribution decreases rapidly with increasing detuning. The diffuse reflection is due to two distinct effects: spontaneous emission in the evanescent wave and roughness in the evanescent wave potential whose amplitude is smaller than the de Broglie wavelength of the reflected atoms.