Abstract
Remarkable resolution improvement has been achieved in super-resolution imaging [1-4], but all of the techniques possess the shortcoming of not being able to passively image the sample. In 2015 Tsang et al. [5-7] showed that the diffraction limit can be overcome for estimating the distance between two incoherent point sources. Our group extended his framework into complete far-field, linear-optical, and passive 2D imaging, deemed Hermite-Gaussian imaging (HGI), by measuring Hermite-Gaussian (HG) modes in the image plane and shown a two-fold resolution improvement for reconstructing coherent objects [8-9].
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