ANALYSIS OF LAYERED SCATTERING MATERIALS BY PULSED PHOTOTHERMAL RADIOMETRY - APPLICATION TO PHOTON PROPAGATION IN TISSUE

被引：37

作者：

VITKIN, IA

WILSON, BC

ANDERSON, RR

机构：

[1] MCMASTER UNIV,HAMILTON,ON L8V 1C3,CANADA

[2] PRINCESS MARGARET HOSP,ONTARIO CANC INST,DEPT CLIN PHYS,TORONTO,ON M4X 1K9,CANADA

[3] UNIV TORONTO,DEPT MED BIOPHYS,TORONTO,ON M4X 1K9,CANADA

[4] MASSACHUSETTS GEN HOSP,WELLMAN LABS PHOTOMED,BOSTON,MA 02114

[5] HARVARD UNIV,SCH MED,BOSTON,MA 02114

来源：

APPLIED OPTICS | 1995年 / 34卷 / 16期

关键词：

LASER; OPTICAL DIFFUSION; IR RADIOMETRY; 2-LAYER MEDIUM;

D O I：

10.1364/AO.34.002973

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A model of pulsed photothermal radiometry (PPTR) based on optical diffusion theory is presented for a turbid, two-layer, semi-infinite medium containing a surface layer whose optical absorption and scattering properties differ from that of the underlying layer. Assuming one-dimensional geometry, we develop expressions for the depth-dependent fluence distributions and radiant-energy-density profiles and for the time dependence of the PPTR signal. Experimental tests of the PPTR model in a series of layered phantoms of varying optical properties are described. The results of these tests are consistent with the model predictions.

引用

页码：2973 / 2982

页数：10

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