Back Focal Plane Confocal Ptychography

Michael G. Somekh; Suejit Pechprasarn; Wen Chen; Pakapron Pimonsakonwong; Naphat Albutt

doi:10.4028/www.scientific.net/AMM.866.361

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 866Back Focal Plane Confocal Ptychography

Back Focal Plane Confocal Ptychography

Abstract:

This paper illustrates how the amplitude and phase of back focal plane distribution can be recovered in a confocal microscope system from several intensity images in the image plane. These will have a wide range of uses for imaging and sensing. We believe this method is complementary to the V(z) technique where the sample is defocused. The field generated in the back focal plane may be processed by virtual propagation which averages noise in a highly efficient manner. In this paper, we demonstrate that the phase information on the back focal plane can be recovered using ptychography with no need to modify the optical configuration and employ an interferometer. This phase information plays a crucial role in sensitivity of surface plasmons resonance biosensing systems.

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Periodical:

Applied Mechanics and Materials (Volume 866)

Pages:

361-364

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.866.361

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Online since:

June 2017

Authors:

Michael G. Somekh, Suejit Pechprasarn, Wen Chen, Pakapron Pimonsakonwong, Naphat Albutt*

Keywords:

Back Focal Plane, Phase Reconstruction, Ptychography

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