Full field-of-view digital lens-free holography for weak-scattering objects based on grating modulation

Journal Article

© 2018 Optical Society of America. Grating-based single-shot digital lens-free holography with spatial spectral multiplexing is proposed to realize full field-of-view (FOV) imaging for weak-scattering objects. Multiple object waves are generated by a one-dimensional grating that is placed in near contact with the object to avoid the cross talk among different diffraction orders during reconstruction. A multiplexed off-axis hologram is created by interference between the object waves and reference wave and captured by an image sensor in one shot. Multiple imaging areas corresponding to the captured object waves can be simultaneously retrieved during reconstruction. A formula which guarantees full FOV imaging without cross talk or information loss is presented. The imaging experiments of a USAF resolution target are presented to demonstrate the feasibility of this method.

Full Text

Duke Authors

Cited Authors

  • Zhang, W; Cao, L; Jin, G; Brady, D

Published Date

  • January 1, 2018

Published In

Volume / Issue

  • 57 / 1

Start / End Page

  • A164 - A171

Electronic International Standard Serial Number (EISSN)

  • 2155-3165

International Standard Serial Number (ISSN)

  • 1559-128X

Digital Object Identifier (DOI)

  • 10.1364/AO.57.00A164

Citation Source

  • Scopus