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研究光在混浊介质或生物组织内传播的光场分布的变化，可以间接地获得介质的散射和吸收特性以及介质内部结构变化的有用信息。文章给出了一种描述光在均匀散射介质中传播的光场分布的理论和计算机仿真。在此基础上，通过结合组织近红外光谱学技术（ＮＩＲＳ）与现代激光技术，研究了一种用近红外光学相干相位阵列调制法探测生物组织非均匀性（肿瘤）的新方法。设计了组织光学特性模型，并进行了各种不同条件下实验。探索了生物组织中光场分布与组织特性之间的相互关系。实验表明，给出的检测如大脑和乳腺中存在小吸收体的方法是简单、可行和有效的。
Studying the change of the light distribution of light propagating in the turbid medium or biological tissue can indirectly obtain the useful information of the scattering and absorption characteristics of the medium and the change of the internal structure of the medium. The paper gives a theoretical and computer simulation of the distribution of light field propagating in uniform scattering medium. Based on this, a new method of detecting non-uniformity of biological tissue (tumor) by near-infrared optical coherence phase array modulation was studied by combining tissue-near-infrared spectroscopy (NIRS) with modern laser technology. The model of optical properties of the tissue was designed and experiments under different conditions were carried out. Explored the relationship between light field distribution and tissue properties in biological tissues. Experiments have shown that given assays such as the presence of small absorbers in the brain and breast are simple, feasible and effective.