Neumann D B, Jacobson C F, Brown G M
Appl Opt. 1970 Jun 1;9(6):1357-62. doi: 10.1364/AO.9.001357.
A means is demonstrated for determining the phase of vibrating objects by using either time average holography or real time holographic interferometry. The technique consists of vibrating a mirror in either the object or reference leg at the same frequency as the object and observing the effects on the fringe pattern when either the phase or amplitude of the mirror vibration is altered. Proper adjustment of these parameters places an interferometric node (fringe-contrast maximum) at any object point. The phase is then known from the phase of the vibrating mirror.
展示了一种通过使用时间平均全息术或实时全息干涉术来确定振动物体相位的方法。该技术包括在物体臂或参考臂中以与物体相同的频率振动一个镜子,并观察当镜子振动的相位或幅度改变时对条纹图案的影响。对这些参数进行适当调整可在任何物体点处设置一个干涉节点(条纹对比度最大值)。然后根据振动镜子的相位来确定物体的相位。