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Object characterization with refractometric digital holography

Sebesta, Mikael LU and Gustafsson, Mats LU (2004) In Technical Report LUTEDX/(TEAT-7126)/1-6/(2004) TEAT-7126.
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)
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Book/Report
publication status
published
subject
in
Technical Report LUTEDX/(TEAT-7126)/1-6/(2004)
volume
TEAT-7126
pages
6 pages
publisher
[Publisher information missing]
language
English
LU publication?
yes
id
4b759ca8-f6b4-4939-afb1-24aacf05ec60 (old id 530295)
date added to LUP
2007-09-12 11:54:19
date last changed
2016-04-16 10:47:50
@misc{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},
  language     = {eng},
  pages        = {6},
  publisher    = {ARRAY(0xad32008)},
  series       = {Technical Report LUTEDX/(TEAT-7126)/1-6/(2004)},
  title        = {Object characterization with refractometric digital holography},
  volume       = {TEAT-7126},
  year         = {2004},
}