频域近红外光谱系统利用一个高频正弦信号对光源进行调制，从而在大脑这类强散射介质中形成一种漫射光子密度波。
The frequency-domain NIRS instruments modulate the light with a RF sine wave, which generates diffuse photon density wave (DPDW) in turbid tissue like brain.
本文介绍了目前生物医学光子学领域内引人注目的新技术— 扩散光子密度波技术的理论基础、 系统及国内外的最新进展。
The paper introduces the present knowledge of the theory and technology of diffusion photon density wave (DPDW) which have been focus of the recent research.
从光的波粒二象性出发，分别根据光波的能量守恒定律及光子出现的概率密度与电场强度的平方成正比，推导出光吸收的朗伯定律。
From the wave-particle duality, we can deduce the Lambert law of light absorption according to the light waves energy and probability of photon.
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