Lensless coherent imaging by sampling of the optical field with digital micromirror device

Journal Article (2015)
Author(s)

Gleb Vdovin (TU Delft - Team Raf Van de Plas)

H. Gong (TU Delft - Team Raf Van de Plas)

Oleg Soloviev (TU Delft - Team Raf Van de Plas)

Paolo Pozzi (TU Delft - Team Raf Van de Plas)

M.H.G. Verhaegen (TU Delft - Team Raf Van de Plas)

Department
Delft Center for Systems and Control
Copyright
© 2015 Gleb Vdovin, H. Gong, O.A. Soloviev, P. Pozzi, M.H.G. Verhaegen
DOI related publication
https://doi.org/10.1088/2040-8978/17/12/122001
More Info
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Publication Year
2015
Language
English
Copyright
© 2015 Gleb Vdovin, H. Gong, O.A. Soloviev, P. Pozzi, M.H.G. Verhaegen
Department
Delft Center for Systems and Control
Issue number
12
Volume number
17
Pages (from-to)
1-5
Reuse Rights

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Abstract

We have experimentally demonstrated a lensless coherent microscope based on direct registration of the complex optical field by sampling the pupil with a sequence of two-point interferometers formed by a digital micromirror device. Complete registration of the complex amplitude in the pupil of the imaging system, without any reference beam, provides a convenient link between the experimental and computational optics. Unlike other approaches to digital holography, our method does not require any external reference beam, resulting in a simple and robust registration setup. Computer analysis of the experimentally registered field allows for focusing the image in the whole range from zero to infinity, and for virtual correction of the aberrations present in the real optical system, by applying the adaptive wavefront corrections to its virtual model.

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