11 August 2008 Investigations and improvements of digital holographic tomography applied for 3D studies of transmissive photonics microelements
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Abstract
In order to control performance of photonics microelements it is necessary to receive 3D information about their amplitude and phase distributions. To perform this task we propose to apply tomography based on projections gather by digital holography (DH). Specifically the DH capability to register several angular views of the object during a single hologram capture is employed, which may in future shorten significantly the measurement time or even allow for tomographic analysis of dynamic media. However such a new approach brings a lot of new issues to be considered. Therefore, in this paper the method limitations, with special emphasis on holographic reconstruction process, are investigated through extensive numerical experiments with special focus on 3D refractive index distribution determination.. The main errors and means of their elimination are presented. The possibility of 3D refractive index distribution determination by means of DHT is proved numerically and experimentally.
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Malgorzata Kujawinska, Malgorzata Kujawinska, Agata Jozwicka, Agata Jozwicka, Tomasz Kozacki, Tomasz Kozacki, } "Investigations and improvements of digital holographic tomography applied for 3D studies of transmissive photonics microelements", Proc. SPIE 7063, Interferometry XIV: Techniques and Analysis, 70630F (11 August 2008); doi: 10.1117/12.798314; https://doi.org/10.1117/12.798314
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