Speckle size, intensity and contrast measurement application in micron-size particle concentration assessment

被引：31

作者：

Chicea, D. ^{[1
]}

机构：

[1] Univ Lucian Blaga, Dept Phys, Sibiu, Romania

来源：

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2007年 / 40卷 / 03期

关键词：

D O I：

10.1051/epjap:2007163

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A transmission type of experiment was set-up to investigate coherent light scattering on suspensions with scattering centers having a wider size distribution. For each sample the contrast, the average intensity and the average speckle size of the far interference field were calculated using an alternative simple algorithm that is presented in detail. The variation of the far field parameters with the scattering centers concentration is presented. A possible application in measuring the scattering centers concentration in the very small values range is suggested and the range is indicated.

引用

页码：305 / 310

页数：6

共 19 条

[1] BIO-SPECKLE PHENOMENA AND THEIR APPLICATION TO THE EVALUATION OF BLOOD-FLOW [J].

AIZU, Y ;

ASAKURA, T .

OPTICS AND LASER TECHNOLOGY, 1991, 23 (04) :205-219

[2]

BARCEWELL R, 1999, FOURIER TRANSFORM IT

[3] Study of speckle size of light scattered from cylindrical rough surfaces [J].

Berlasso, R ;

Quintián, FP ;

Rebollo, MA ;

Raffo, CA ;

Gaggioli, NG .

APPLIED OPTICS, 2000, 39 (31) :5811-5819

[4] Spatially varying dynamical properties of turbid media probed with diffusing temporal light correlation [J].

Boas, DA ;

Yodh, AG .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1997, 14 (01) :192-215

[5] Capillary blood flow monitoring using laser speckle contrast analysis (LASCA) [J].

Briers, JD ;

Richards, G ;

He, XW .

JOURNAL OF BIOMEDICAL OPTICS, 1999, 4 (01) :164-175

[6] Laser Doppler, speckle and related techniques for blood perfusion mapping and imaging [J].

Briers, JD .

PHYSIOLOGICAL MEASUREMENT, 2001, 22 (04) :R35-R66

[7] Anisotropic speckle patterns in the light scattered by rough cylindrical surfaces [J].

DaCosta, G ;

Ferrari, J .

APPLIED OPTICS, 1997, 36 (21) :5231-5237

[8] The use of dynamic speckle field space-time correlation function estimates for the direction and velocity determination of blood flow [J].

Fedosov, IV ;

Tuchin, VV .

HYBRID AND NOVEL IMAGING AND NEW OPTICAL INSTRUMENTATION FOR BIOMEDICAL APPLICATIONS, 2001, 4434 :192-196

[9] Near-field intensity correlations of scattered light [J].

Giglio, M ;

Carpineti, M ;

Vailati, A ;

Brogioli, D .

APPLIED OPTICS, 2001, 40 (24) :4036-4040

[10]

GOODMAN JW, 1984, LASER SPECKLE RELATE, V9

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