Application of speckle techniques to studies of phase separation in eye lens homogenate

Bronislaw Grzegorzewski; Marek Syroczynski; Malgorzata Pyskir

doi:10.1117/12.200826

31 January 1995 Application of speckle techniques to studies of phase separation in eye lens homogenate

Bronislaw Grzegorzewski, Marek Syroczynski, Malgorzata Pyskir

Proceedings Volume 2326, Photon Transport in Highly Scattering Tissue; (1995) https://doi.org/10.1117/12.200826
Event: International Symposium on Biomedical Optics Europe '94, 1994, Lille, France

Abstract

The temperature reversible phenomenon called phase separation is one of the mechanisms of cataract formation. At a sufficiently low temperature the protein solution separates into protein-rich and protein-poor domains. When light propagates through the medium the random refractive index fluctuations associated with the domains produce intense scattering. It is shown that a thin layer of eye lens homogenate at a sufficiently low temperature produces speckle pattern. This pattern is polarized, Gaussian and partially developed. The speckle pattern is a result of a single scattering. We have investigated the speckle pattern for the case of an induced phase separation. The specular component of scattered radiation is measured in dependence on the temperature. At 18 degree(s)C the first-order statistical properties of the speckle pattern are investigated. The pattern is investigated in the far-field region. The probability density function of speckle intensity and the average contrast of the speckle intensity is measured. Also some results related to the second order statistics are given. It is assumed that the object is phase modulation type. The standard deviations of phase variations and correlation length of the phase variations are estimated.

Citation Download Citation

Bronislaw Grzegorzewski, Marek Syroczynski, and Malgorzata Pyskir "Application of speckle techniques to studies of phase separation in eye lens homogenate", Proc. SPIE 2326, Photon Transport in Highly Scattering Tissue, (31 January 1995); https://doi.org/10.1117/12.200826

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Speckle

Speckle pattern

Eye

Scattering

Phase shift keying

Light scattering

Phase modulation

Show All Keywords

Keywords/Phrases

Search In:

Publication Years