Müllers David, Kuhl Jonas, Kontermann Stefan
J Opt Soc Am A Opt Image Sci Vis. 2022 Apr 1;39(4):744-758. doi: 10.1364/JOSAA.452462.
Recent research in quantitative phase and refractive index microscopy showed promising results with methods using a partially coherent imaging setup, such as partially coherent optical diffraction tomography. For these methods, the phase optical transfer function (POTF), which describes the transmission of spatial frequencies by the imaging system, is crucial. Here, a one-dimensional integral representation of the POTF for imaging systems with arbitrary illumination is derived. It generalizes the existing expression, which is limited to axially symmetric setups. From the general integral form, an analytical solution is derived for the case of oblique homogeneous disk-shaped illumination. This demonstrates the potential of the general representation by offering an additional approach for illumination design in quantitative phase and refractive index microscopy.
近期在定量相位和折射率显微镜方面的研究表明，使用部分相干成像装置的方法，如部分相干光学衍射层析成像，取得了令人鼓舞的成果。对于这些方法，描述成像系统对空间频率传输的相位光学传递函数（POTF）至关重要。在此，推导了具有任意照明的成像系统的POTF的一维积分表示。它推广了现有的表达式，现有的表达式仅限于轴对称装置。从一般积分形式出发，推导了倾斜均匀圆盘形照明情况下的解析解。这通过提供一种用于定量相位和折射率显微镜照明设计的额外方法，展示了一般表示的潜力。
