OPTICAL-TRANSMISSION IN DISORDERED MEDIA
OPTICAL-TRANSMISSION IN DISORDERED MEDIA
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DOI：
10.1103/physrevlett.58.2043
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发表时间：
1987-05-18
影响因子：
8.6
通讯作者：
GENACK, AZ
中科院分区：
文献类型：
--
作者：
GENACK, AZ
测量了包含二氧化钛微观结构的楔形随机介质中透射率的尺度依赖性。扩散系数和吸收长度由总透射率与厚度的关系确定。观察这些参数以确定扫描激光频率时传输的散斑图案内强度波动的相关频率的尺度依赖性。观察到平均自由程短至 1.4 和 0.35 μm。
The scale dependence of transmission in wedged random media containing titania microstructures is measured. The diffusion coefficient and absorption length are determined from the total transmission versus thickness. These parameters are observed to determine the scale dependence of the correlation frequency of fluctuations in intensity within the transmitted speckle pattern as the laser frequency is scanned. Mean free paths as short as 1.4 and 0.35 μm are observed.