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Object characterization with refractometric digital holography

Sebesta, Mikael LU and Gustafsson, Mats LU orcid (2004) In Technical Report LUTEDX/(TEAT-7126)/1-6/(2004)
Abstract
We demonstrate a Digital Holographic method where two different substances

in a blend can be discerned. The method requires only one set of exposures

and one reconstruction in the plane of focus. The large scale phase variation

of the phase image is unwrapped by Flynn’s discontinuity algorithm to reveal

which regions in the sample the phase has decreased or increased upon

transmission of the illuminating wave. Objects with higher or lower index

of refraction than the mounting liquid can be detected as regions where the

phase has been shifted. We also present a method to calculate the volume

distribution of substrates in a sample. Experimental results of both... (More)
We demonstrate a Digital Holographic method where two different substances

in a blend can be discerned. The method requires only one set of exposures

and one reconstruction in the plane of focus. The large scale phase variation

of the phase image is unwrapped by Flynn’s discontinuity algorithm to reveal

which regions in the sample the phase has decreased or increased upon

transmission of the illuminating wave. Objects with higher or lower index

of refraction than the mounting liquid can be detected as regions where the

phase has been shifted. We also present a method to calculate the volume

distribution of substrates in a sample. Experimental results of both methods

are demonstrated with crystals of NaCl and KCl. (Less)
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Book/Report
publication status
published
subject
in
Technical Report LUTEDX/(TEAT-7126)/1-6/(2004)
pages
6 pages
publisher
[Publisher information missing]
report number
TEAT-7126
language
English
LU publication?
yes
additional info
Published version: Optics Letters, Vol. 30, No. 5, pp. 471-73, 2005.
id
4b759ca8-f6b4-4939-afb1-24aacf05ec60 (old id 530295)
date added to LUP
2016-04-04 13:04:20
date last changed
2018-11-21 21:12:03
@techreport{4b759ca8-f6b4-4939-afb1-24aacf05ec60,
  abstract     = {{We demonstrate a Digital Holographic method where two different substances<br/><br>
in a blend can be discerned. The method requires only one set of exposures<br/><br>
and one reconstruction in the plane of focus. The large scale phase variation<br/><br>
of the phase image is unwrapped by Flynn’s discontinuity algorithm to reveal<br/><br>
which regions in the sample the phase has decreased or increased upon<br/><br>
transmission of the illuminating wave. Objects with higher or lower index<br/><br>
of refraction than the mounting liquid can be detected as regions where the<br/><br>
phase has been shifted. We also present a method to calculate the volume<br/><br>
distribution of substrates in a sample. Experimental results of both methods<br/><br>
are demonstrated with crystals of NaCl and KCl.}},
  author       = {{Sebesta, Mikael and Gustafsson, Mats}},
  institution  = {{[Publisher information missing]}},
  language     = {{eng}},
  number       = {{TEAT-7126}},
  series       = {{Technical Report LUTEDX/(TEAT-7126)/1-6/(2004)}},
  title        = {{Object characterization with refractometric digital holography}},
  url          = {{https://lup.lub.lu.se/search/files/6047128/624868.pdf}},
  year         = {{2004}},
}