Recovering correct phase information in multiwavelength digital holographic microscopy by compensation for chromatic aberrations
Anno: 2005
Autori: De Nicola S., Finizio A., Pierattini G., Alfieri D., Grilli S., Sansone L., Ferraro P.
Affiliazione autori: Istituto di Cibernetica “E. Caianiello” del Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy;
Istituto Nazionale di Ottica Applicata, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
Abstract: We demonstrate experimentally that correct phase imaging Without 2 pi ambiguity is obtainable in digital holography by using a multiwavelength approach in the microscope configuration. We describe a general approach for removing chromatic aberrations and for controlling the pixel size of the reconstructed phase image in multiwavelength digital holography when the Fourier transform method is adopted for the numerical reconstruction of digital holograms. The retrieved phase is affected by the unavoidable, unwanted chromatic aberration. The correct phase can be obtained by evaluating the phase from the reference holograms reconstructed at different wavelengths to compensate for the chromatic aberration. (c) 2005 Optical Society of America.
Giornale/Rivista: OPTICS LETTERS
Volume: 30 (20) Da Pagina: 2706 A: 2708
Parole chiavi: holography; holographic interferometry; optical data processingDOI: 10.1364/OL.30.002706Citazioni: 85dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui