Publication detail

Sensor of back-scattered light polarization in body cells

TOMÁNEK, P. MIKLÁŠ, J. BAJGAR, A. GRMELA, L. DOBIS, P. BRÜSTLOVÁ, J.

Original Title

Sensor of back-scattered light polarization in body cells

Type

conference paper

Language

English

Original Abstract

The biological tissues consist of cells which dimensions are bigger than a wavelength of visible light. Therefore a Mie scattering of transmitted and reflected light occurs and different polarization states arise. The back-scattered polarized laser light exhibits multiple scattering from the surface and subsurface layers of the sample. Notwithstanding this phenomenon is different if the cellular tissues are live or dead. In the case of porcine meat, there are temporal and dynamic changes not only as a result of chemical process, but also geometric deformations due to the water evaporation from intracellular and extracellular sites. Although multiple scattering in tissue randomizes incident polarization states, the shift of polarization can be clearly observed in diffusive scattering pattern due to the muscle orientation and meat aging. Accordingly, these temporal changes due to the multiple scattering of backscattered light allow measure the freshness of processed meat.

Keywords

biological tissue, backscattering, Mie scattering, polarization degree, aging, pork meat, measurement

Authors

TOMÁNEK, P.; MIKLÁŠ, J.; BAJGAR, A.; GRMELA, L.; DOBIS, P.; BRÜSTLOVÁ, J.

RIV year

2009

Released

18. 5. 2009

Publisher

SPIE

Location

Bellingham, USA

ISBN

0277-786X

Periodical

Proceedings of SPIE

State

United States of America

Pages from

7356281

Pages to

7356289

Pages count

9

BibTex

@inproceedings{BUT31790,
  author="Pavel {Tománek} and Jan {Mikláš} and Aleš {Bajgar} and Lubomír {Grmela} and Pavel {Dobis} and Jitka {Brüstlová}",
  title="Sensor of back-scattered light polarization in body cells",
  booktitle="Optical sensors 2009, Francesco Baldini, Jiri Homola, Robert A. Lieberman (Eds)., SPIE Proceedings, vol. 7356",
  year="2009",
  journal="Proceedings of SPIE",
  number="1",
  pages="7356281--7356289",
  publisher="SPIE",
  address="Bellingham, USA",
  issn="0277-786X"
}