Department of Physics, Korea University, Seoul 136-701, South Korea.
Opt Lett. 2011 Nov 1;36(21):4263-5. doi: 10.1364/OL.36.004263.
We report on synthetic aperture microscopy through a highly turbid medium. We first recorded a transmission matrix for the turbid medium with an angular basis of 20,000 complex images covering 0.6 NA. This effectively converts the medium into a lens of the same NA. Distorted images of a target object are then taken at 500 different angles of illumination covering 0.6 NA. For each of the distorted images, the original object image is reconstructed from the transmission matrix by the recently developed turbid lens imaging (TLI) technique. All 500 reconstructed images are synthesized to enhance the NA to 1.2 and thereby generate an object image with twice the enhanced spatial resolution of the individual images. Our method of applying aperture synthesis for TLI makes it possible to enhance the resolving power without increasing the number of transmission matrix elements. This relieves the demand for data acquisition and processing that has impeded the practicality of TLI.
我们报告了通过高度混浊介质的合成孔径显微镜。我们首先记录了混浊介质的传输矩阵，使用了 20000 个复杂图像的角度基，覆盖了 0.6 NA。这有效地将介质转换为相同 NA 的透镜。然后在 500 个不同的照明角度下拍摄目标物体的失真图像，覆盖了 0.6 NA。对于每个失真图像，通过最近开发的混浊透镜成像 (TLI) 技术，从传输矩阵中重建原始物体图像。将所有 500 个重建图像进行合成，以将 NA 增强到 1.2，从而生成具有比单个图像增强的空间分辨率两倍的物体图像。我们应用孔径合成进行 TLI 的方法使得能够在不增加传输矩阵元素数量的情况下提高分辨率。这减轻了数据采集和处理的需求，这些需求阻碍了 TLI 的实用性。
