Phase contrast metrology using digital in-line holography: General models and reconstruction of phase discontinuities
| Autor: | Sébastien Coëtmellec, Marc Brunel, Huanhuan Shen, K. Aït Ameur, Denis Lebrun |
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| Rok vydání: | 2013 |
| Předmět: |
Physics
Radiation business.industry Phase (waves) Classification of discontinuities Atomic and Molecular Physics and Optics Fractional Fourier transform Metrology symbols.namesake Optics Fourier transform symbols Digital holographic microscopy Monochromatic color business Spectroscopy Digital holography |
| Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer. 126:113-121 |
| ISSN: | 0022-4073 |
| DOI: | 10.1016/j.jqsrt.2012.08.015 |
| Popis: | General models are developed to describe in-line digital phase contrast experiments. They link analytically the reconstruction process and the different parameters of the set-up. Reconstructions of phase discontinuities are realized using 2 Dimensional-Fractional Fourier Transforms (2D-FRFT). They give the 3D position and the dimension of the phase object, and the phase shift introduced. Experimental results and simulations are in good concordance. The technique can be used with monochromatic or with large spectrum laser sources. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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