Condensed-Matter Physics & Materials Science Seminar
"X-ray Bragg Projection Ptychography"
Presented by Nicolas Burdet, University College London
Monday, February 10, 2014, 1:30 pm
Bldg. 734, ISB Conf. Rm. 201 (upstairs)
Hosted by: Stuart Wilkins
Ptychography has the ability to obtain images from the diffraction patterns alone, without the need for lenses. It has proved to be a quantitative and non-destructive microscopy technique for two- and three-dimensional images that is successful for nano-materials and biological objects. It also alleviates some of the problems with single-measurement Coherent Diffraction Imaging (CDI) methods, such as convergence difficulties for strong phase objects, experimental problems (vibrations, partial coherence) and also allows complete characterisation of the complex scanned illumination wavefield through recovery of its respective modes.