Mechanisms of ultrasonic modulation of multiply scattered incoherent light based on diffusion theory  

作　　者：朱莉莉 李晖 

机构地区：[1]Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonic Technology, College of Photonic and Electronic Engineering, Fujian Normal University

出　　处：《Chinese Physics B》2015年第1期536-541,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.61178089);the Key Program of Science and Technology of Fujian Province,China(Grant No.2011Y0019);the Educational Department of Fujian Province,China(Grant No.JA13074)

摘　　要：An analytic equation interpreting the intensity of ultrasound-modulated scattering light is derived, based on diffusion theory and previous explanations of the intensity modulation mechanism. Furthermore, an experiment of ultrasonic modulation of incoherent light in a scattering medium is developed. This analytical model agrees well with experimental results,which confirms the validity of the proposed intensity modulation mechanism. The model supplements the existing research on the ultrasonic modulation mechanism of scattering light.An analytic equation interpreting the intensity of ultrasound-modulated scattering light is derived, based on diffusion theory and previous explanations of the intensity modulation mechanism. Furthermore, an experiment of ultrasonic modulation of incoherent light in a scattering medium is developed. This analytical model agrees well with experimental results,which confirms the validity of the proposed intensity modulation mechanism. The model supplements the existing research on the ultrasonic modulation mechanism of scattering light.

关 键 词：ultrasound-modulated scattering light intensity modulation mechanism diffusion theory incoherent light 

分 类 号：O426[理学—声学]