Phys.org

Diffraction-limited visible imaging for large aperture telescopes

A new publication from Opto-Electronic Advances discusses diffraction-limited visible imaging for large aperture telescopes. The deformable mirror used in adaptive optics can change its surface to ...
EurekAlert!

Diffraction-limited visible imaging for large aperture telescopes: development and application of piezoelectric deformable secondary mirror

Fig. 1 | (a) The sketch of the PDSM-241. (b) Actuator layout (clear aperture: 270mm). (c) The self-corrected aberration of PDSM-241. A new publication from Opto-Electronic Advances, ...
Nanowerk

Diffraction Limit: The Fundamental Barrier in Optical Microscopy

What is the Diffraction Limit? The diffraction limit is a fundamental barrier in optical microscopy that sets the minimum size of features that can be resolved using conventional light microscopes. It ...
Nature

The Photometric Measurement of the Obliquity Factor of Diffraction

IN vol. lxxviii. of NATURE (May 21, 1908, p. 55) was published a note on “Secondary Waves of Light,” in which I described the diffraction effects produced by an obliquely held rectangular aperture or ...
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Inverse synthetic aperture macroscopic Fourier ptychography enables super-resolution imaging of non-cooperative moving targets

ISAMFP concept and system overview. (a) Schematics of beam-scanning, aperture-scanning, and ISA acquisition. (b) Optical layout of the system. (c) Target motion trajectories with recorded frames. (d) ...