Tagging photons with gold nanoparticles as localized absorbers in optical measurements in turbid media
Tagging photons with gold nanoparticles as localized absorbers in optical measurements in turbid media
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DOI：
10.1364/boe.4.002989
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发表时间：
2013-12-01
影响因子：
3.4
通讯作者：
Whelan, William M.
中科院分区：
文献类型：
--
作者：
Grabtchak, Serge;Callaghan, Kristen B.;Whelan, William M.
我们分析了局部夹杂物作为混浊介质中迁移光子空间分布探针的作用。当目标沿着连接光源和检测器的线平移时，我们提出了新的实验数据和二维分析，对由 Intralipid-1% 中的金纳米粒子形成的局部吸收夹杂物进行辐射检测。使用通过扩展注量扰动方法开发的辐射相对角光子分布函数的新颖解析表达式来分析数据。获得的光子图可以预测内含物的可检测性条件，对于这些条件，接近探测器至关重要。 (C) 2013 美国光学学会
We analyze a role of a localized inclusion as a probe for spatial distributions of migrating photons in turbid media. We present new experimental data and two-dimensional analysis of radiance detection of a localized absorptive inclusion formed by gold nanoparticles in Intralipid-1% when the target is translated along the line connecting the light source and detector. Data are analyzed using the novel analytical expression for the relative angular photon distribution function for radiance developed by extending the perturbation approach for fluence. Obtained photon maps allow predicting conditions for detectability of inclusions for which proximity to the detector is essential. (C) 2013 Optical Society of America