Electrical and Computer Engineering Seminar Series

Diffractive imaging with x-ray lasers

Speaker

Dr Joe Chen

Institute

Postdoctoral Research Associate Department of Physics Arizona State University USA

Time & Place

Fri, 28 Feb 2020 14:00:00 NZDT in Link 309 Lecture Theatre

Abstract

Diffractive imaging is a way to form an image without the use of a lens. The lens is replaced by digital computation and algorithms. The arrival of a new generation of x-ray sources called the x-ray free-electron laser (XFEL) during the last decade has enabled new opportunities in diffractive imaging requiring new algorithms. In this talk we will explore how diffractive imaging works, the things that we are trying to image (proteins and viruses), cool properties of XFELs, and the nuts and bolts of the so-called phase retrieval algorithm that are being developed to deal with data from x-ray lasers.