超越空间成像的结构化探测

中文摘要 AI 辅助

在点扫描显微镜中，通过针孔进行探测可提高分辨率，而用探测器阵列替代针孔则能对物体频谱进行冗余编码，从而能够校正成像系统中的非理想因素或进一步提高分辨率等。在此，我们表明结构化探测所依据的数学原理本质上并非空间性的，因此结构化探测可用于对其他物理域（如时间、频率和速度空间）中的分布进行成像。我们通过将结构化探测应用于使用四波混频（FWM）的时间电磁分布，数值上展示了这种普适性。即使FWM模型变得更加真实并考虑散粒噪声，所得图像重建仍优于共焦探测的时间等效方法。

英文摘要

In a point-scanning microscope, detection through a pinhole improves resolution and replacing the pinhole with a detector array provides redundant encoding of the object spectrum, enabling correction of nonidealities in the imaging system or further resolution improvements, for instance. Here, we show that the mathematical principles underlying structured detection are not intrinsically spatial and therefore structured detection may be used for imaging distributions in other physical domains, such as time, frequency, and velocity space. We numerically illustrate this generality by applying structured detection to an electromagnetic distribution in time using four-wave mixing (FWM). The resulting image reconstructions outperform the temporal equivalent of confocal detection, even as the FWM models are made more realistic and shot noise is considered.

发表机构

• University of Colorado, Boulder（科罗拉多大学博尔德分校）

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