We show for the first time that ptychography (a form of lensless diffractive imaging) can
recover the spectral response of an object through simultaneous reconstruction of multiple …

Ptychography is a particularly powerful coherent diffraction imaging technique. In
ptychography, a localized beam that illuminates the object is scanned in a step-wise fashion …

Ptychography is a coherent diffractive imaging method that uses multiple diffraction patterns
obtained through the scan of a localized illumination on the specimen. Until recently …

We outline how ptychographic imaging can be performed without the need for discrete scan
positions. Through an idealized experiment, we demonstrate how a discrete-position scan …

Ptychography, a form of Coherent Diffractive Imaging, is used with short wavelengths (eg X-
rays, electron beams) to achieve high-resolution image reconstructions. One of the limiting …

Ptychography is a coherent imaging technique that enables an image of a specimen to be
generated from a set of diffraction patterns. One limitation of the technique is the assumption …

Ptychography is a form of scanning diffractive imaging that can successfully retrieve the
modulus and phase of both the sample transmission function and the illuminating probe. An …

Ptychography is a coherent diffraction imaging (CDI) method for extended objects in which
diffraction patterns are acquired sequentially from overlapping coherent illumination spots …

An autofocusing algorithm for ptychography is proposed. The method optimizes a sharpness
metric that would be observed in a differential interference microscope and is valid for both …

We report an experimental ptychography measurement performed in fly-scan mode. With a
visible-light laser source, we demonstrate a 5-fold reduction of data acquisition time. By …