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Proceedings Paper

To what extent is coherence lost in tissue?
Author(s): Tomas Hode; Peter Jenkins; Stefan Jordison; Lars Hode
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Paper Abstract

In a series of experiments we investigated the extent to which coherence is preserved in tissue. We investigated whether the decrease in coherence length is dependent upon the coherence length of the illuminating light and possibly also if the light is polarized. We compared highly coherent light from a HeNe laser, and less coherent light from a semiconductor laser, in scattering media such as raw ground beef. We studied the laser speckle contrast after passing through 1 - 2 cm of meat. The conclusion is that the laser light is still coherent enough to form laser speckles after passing through a 2 cm thickness of meat.

Paper Details

Date Published: 10 February 2011
PDF: 10 pages
Proc. SPIE 7887, Mechanisms for Low-Light Therapy VI, 788703 (10 February 2011); doi: 10.1117/12.878827
Show Author Affiliations
Tomas Hode, Immunophotonics, Inc. (United States)
Peter Jenkins, Irradia USA (United States)
Stefan Jordison, Irradia AB (Sweden)
Lars Hode, Swedish Laser-Medical Society (Sweden)

Published in SPIE Proceedings Vol. 7887:
Mechanisms for Low-Light Therapy VI
Michael R. Hamblin; Ronald W. Waynant; Juanita Anders, Editor(s)

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