Volumetric reconstruction of Brownian motion of a micrometer-size bead in water

Yoon Sung Bae, Jong In Song, Dug Young Kim

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

An effective volumetric measurement and reconstruction scheme for imaging three-dimensional phase objects based on off-axis digital holography is presented. We have experimentally demonstrated the feasibility of our method by observing the Brownian motion of a 3 μm diameter polystyrene bead in water. From a single off-axis hologram of a diffracted field by a sample, a series of transverse intensity images for various axial positions were numerically generated. The center position of the bead sample was pinpointed with a nanometer-scale resolution in 3D space and updated with a frame rate of 30 frames/s. Detailed procedures for elimination of virtual images in an off-axis hologram, reduction of background DC noise, and extraction of exact electric fields in an off-axis hologram are described as advantages of our proposed method over conventional in-line holographic 3D measurement schemes.

Original languageEnglish
Pages (from-to)291-297
Number of pages7
JournalOptics Communications
Volume309
DOIs
Publication statusPublished - 2013 Sep 4

Fingerprint

Brownian movement
Holograms
beads
micrometers
Water
water
Polystyrenes
Holography
Electric fields
holography
Imaging techniques
elimination
polystyrene
direct current
electric fields

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

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Volumetric reconstruction of Brownian motion of a micrometer-size bead in water. / Bae, Yoon Sung; Song, Jong In; Kim, Dug Young.

In: Optics Communications, Vol. 309, 04.09.2013, p. 291-297.

Research output: Contribution to journalArticle

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