Paper
29 July 2002 Zone plates application in the Talbot shift interferometer
Irena Georgievna Palchikova, Sergey L. Mikerin, Vladimir D. Ugozhayev, Alexey A. Klyuchnikov
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Proceedings Volume 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life; (2002) https://doi.org/10.1117/12.484476
Event: Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, 2002, Novosibirsk, Russian Federation
Abstract
A comparative theoretical and experimental examination of Talbot effect behind linear, circular gratings with constant period and zone plates is carried out. Features connected both with the shape and with the period of dashes are detected. It is shown that the quality of the self-image of gratings is determined by the boundaries of the range of spatial frequencies, represented in the image. The experimental results of the phase objects visualisation with the help of the Talbot interferometer with zone plates are given. The zone plate Talbot interferometer was first used for the visualization of thermal inhomogeneity in the active laser element induced by pumping radiation. A registered moire pattern allows clearly observing the appearance of distortions and its kinetics.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Irena Georgievna Palchikova, Sergey L. Mikerin, Vladimir D. Ugozhayev, and Alexey A. Klyuchnikov "Zone plates application in the Talbot shift interferometer", Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); https://doi.org/10.1117/12.484476
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KEYWORDS
Moire patterns

Interferometers

Diffraction

Zone plates

Diffraction gratings

Visualization

Refractive index

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