Figure 1
From: Super-resolution optical telescopes with local light diffraction shrinkage
A schematic of SRT system.
(a) Schematic of the optical measurement setup of a SRT system, including a halogenated lamp, a filter, an optical collimator (L1), an entrance pupil, an objective lens (L2) and a 4ƒ system consisting of a field diaphragm, two mirrors (M), two focusing lenses (L3 and L4), a designed phase plate and a CCD camera. Image courtesy of Dongliang Tang, Institute of Optics and Electronics, Chinese Academy of Sciences. (b) Simulated diffraction-limited pattern and (c) corresponding OTF at diaphragm plane. (d) Simulated sub-diffraction pattern and corresponding (e) OTF and (f) LOTF at CCD plane. Dashed inset rings are the cut-off frequency of diffraction-limited OTF.
