3 June 2010 Digital holographic recording using spatially resolved multiwavelengths
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Proceedings Volume 7730, Optical Data Storage 2010; 773005 (2010) https://doi.org/10.1117/12.859138
Event: Optical Data Storage 2010, 2010, Boulder, Colorado, United States
Abstract
We present a new approach for single shot multi wavelengths contouring using the broad spectrum of a fs-laser. The spectral distribution of a fs-laser contains a multitude of discrete frequencies which principally can be separated and simultaneously used for gathering holograms with different wavelengths. In order to investigate the characteristics of this approach, we have built up a setup using a tuneable dye-laser. Several wavelengths of the dye laser have been spatially distributed for the reference wave on the hologram target. Holograms at different wavelengths are recorded and superimposed numerically afterwards to guarantee resemblance to the fs-laser setup. In this paper we describe the theoretical background, derive an algorithm for noise-reduced reconstruction and show corresponding experimental results.
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S. Huferath-von Luepke, S. Huferath-von Luepke, C. von Kopylow, C. von Kopylow, J. Geldmacher, J. Geldmacher, Th. Kreis, Th. Kreis, } "Digital holographic recording using spatially resolved multiwavelengths", Proc. SPIE 7730, Optical Data Storage 2010, 773005 (3 June 2010); doi: 10.1117/12.859138; https://doi.org/10.1117/12.859138
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