Opt Lett. 2014 Jan 15;39(2):291-4. doi: 10.1364/OL.39.000291.
The Talbot interferometer using different self-imaging structures is studied and applied for laser beam collimation. A circular-linear grating pair enables visual dynamic detection and computer moirégram analysis. Automatic single-frame processing is performed using a 2D continuous wavelet transform. Conducting moirégram imaging in the Fresnel field of a double-diffraction system is brought up to avoid using distortion-free objectives and simplify the experimental setup. Simulation and experimental results document the method properties and provide beautiful exemplification of the double-grating Fresnel diffraction theory developed earlier.
研究了采用不同自成像结构的泰伯干涉仪，并将其应用于激光光束准直。圆-线光栅对可实现可视化动态检测和计算机云纹图分析。采用二维连续小波变换进行自动单帧处理。提出在双衍射系统的菲涅尔域中进行云纹成像，以避免使用无像差物镜并简化实验装置。模拟和实验结果记录了该方法的特性，并为早期开发的双光栅菲涅尔衍射理论提供了很好的例证。
