Optical reconstruction of digital holograms recorded at 10.6 microm: route for 3D imaging at long infrared wavelengths.
Optical reconstruction of digital holograms recorded at 10.6 microm: route for 3D imaging at long infrared wavelengths.
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DOI：
10.1364/ol.35.002112
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发表时间：
2010-06
期刊：
影响因子：
3.6
通讯作者：
M. Paturzo;A. Pelagotti;A. Finizio;L. Miccio;M. Locatelli;Andrea Gertrude;P. Poggi;R. Meucci;P. Ferraro
中科院分区：
文献类型：
--
作者：
M. Paturzo;A. Pelagotti;A. Finizio;L. Miccio;M. Locatelli;Andrea Gertrude;P. Poggi;R. Meucci;P. Ferraro
We demonstrate the optical reconstruction in the visible range (0.532 microm) of digital holograms recorded at long IR wavelengths (10.6 microm) by means of a spatial light modulator. By using an integrated recording-reconstruction system, it is, in fact, feasible to achieve direct imaging of holograms acquired outside the visible range, i.e., in the IR spectrum. By choosing a Fourier recording configuration, the reconstructed image, obtained at about a 20 times shorter wavelength than the acquisition image, exhibits minor aberrations, which do not significantly affect the optical reconstruction. The high NA achievable at a long IR wavelength allows us to image large objects at reasonable distances.
