Acousto-optical imaging of turbid tissues: Possible model

被引：3
作者：
Perchenko, MI [1 ]
Sinichkin, YP [1 ]
Solov'ev, AP [1 ]
Zyuryukina, OV [1 ]
机构：
[1] Saratov State Univ, Saratov 410026, Russia
来源：
SARATOV FALL MEETING '99: LASER PHYSICS AND SPECTROSCOPY | 2000年 / 4002卷
关键词：
ultrasound modulation; coherent interaction; Raman-Nath diffraction; turbid medium;
D O I：
10.1117/12.380116
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The theoretical analyze of coherent acoustic-optical interaction in the turbid medium resulting in the appearance of ultrasound modulation of the photo-detector current has been fulfilled. Analysis of the influence of tissue scattering properties and geometry of experiment on spatial resolution of technique of acousto-optical imaging by using of considered model is made The relations between amplitude and phase of the ac current and the receiver system parameters are derived. The optimal conditions for measurements of the ac current on ultrasound frequency are determined. The experimental testing of these conditions have been accomplished with focused ultrasound wave at 3 MHz. The noise characteristics of detection system were studied as well.
引用
收藏
页码：189 / 195
页数：7
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