摘要
本文描述了一种利用铁电晶体简并四波混频的实时二次曝光法。该方法利用这种晶体的介电弛豫时间检测相位物体的不均匀性。文中给出了较详细的有关理论分析和公式推导,并且对实际玻璃样品进行了测量,验证了该方法的可行性及实用性。
A real-time double-exposure holographic interferometry using degenerate four-wave mixing with photorefractive materials is described. It can be used to test the variations of the phases of transparent objects. The experimental principles and characters are analyzed. The experimental results testing a glass sample are given.
出处
《激光技术》
CAS
CSCD
1989年第2期40-45,共6页
Laser Technology
