Influence of shot noise on phase measurement accuracy in digital holographic microscopy

Florian Charrière*, Benjamin Rappaz, Jonas Kühn, Tristan Colomb, Pierre Marquet, Christian Depeursinge

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

Digital Holographic Microscopy (DHM) is a single shot interferometric technique, which provides quantitative phase images with subwavelength axial accuracy. A short hologram acquisition time (down to microseconds), allows DHM to offer a reduced sensitivity to vibrations, and real time observation is achievable thanks to present performances of personal computers and charge coupled devices (CCDs). Fast dynamic imaging at low-light level involves few photons, requiring proper camera settings (integration time and gain of the CCD; power of the light source) to minimize the influence of shot noise on the hologram when the highest phase accuracy is aimed. With simulated and experimental data, a systematic analysis of the fundamental shot noise influence on phase accuracy in DHM is presented.

Original languageEnglish (US)
Pages (from-to)8818-8831
Number of pages14
JournalOptics Express
Volume15
Issue number14
DOIs
StatePublished - Jul 9 2007
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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