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Refractometry of microscopic objects with digital holography

In English

Författare

Summary, in English

Digital holography has some desirable properties for refractometry of microscopic objects since it gives phase and amplitude information of an object in all depths of focus from one set of exposures. We show that the amplitude part of the image can be used to observe how the Becke lines move between different depths of focus and hence determine whether an object has a higher or a lower index of refraction than its surrounding medium, i.e., the sign of the relief. It is also shown that one single-phase image provides an independent technique to determine the sign of relief between an object and the surrounding medium.

Publiceringsår

2004

Språk

Engelska

Sidor

4796-4801

Publikation/Tidskrift/Serie

Applied Optics

Volym

43

Issue

25

Dokumenttyp

Artikel i tidskrift

Förlag

Optical Society of America

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering
  • Other Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Forskningsgrupp

  • Electromagnetic theory

ISBN/ISSN/Övrigt

  • ISSN: 2155-3165