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Compensation of chromatic aberration in multiwavelength digital holographic investigation of microstructures

  Articoli su Riviste JCR/ISI  (anno 2006)

Autori:  Ferraro P., Grilli S., Alfieri D., De Nicola S., Finizio A., Pierattini G

Affiliazione Autori:  Istituto di Cibernetica (ICIB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; CNR - Istituto Nazionale di Ottica Applicata, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy

Riassunto:  We demonstrate that refractive index profile of microstructure could be correctly recovered in multiwavelenght digital holographic microscope when chromatic aberration is taken into account. The chromatic aberration introduced by the optical imaging components can be can be numerically compensated in the reconstruction process. The compensation approach requires the control of the reconstructed pixel size in the image plane if a Fresnel Transformation Method is adopted to take into account the different wavelengths used to investigate the samples. Description of the method and several examples of application will be discussed.

Rivista/Giornale:  PROCEEDINGS OF SPIE
Volume n.:  6293      Pagine da: 629304  a: 629304
Note:  Congress: Interferometry XIII: Applications in San Diego (USA)
Ulteriori informazioni:  This research was partially funded by the Ministero dell
DOI: 10.1117/12.683858


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