THIBAULT1	Laser-based ptychography on index-matched samples
Type	Experimental
#students	1
Orientation	Why is the scientific problem of interest at all? Ptychography is an imaging technique that uses coherent light to produce quantitative maps of the transmission function of a sample. A visible-light setup is currently being put together to benchmark the technique for X-ray applications, but also to be used as a microscope in its own right.
How	How is the research going to shed light on the given problem? To be fully useful, the setup will have to be adapted to flexibly accommodate many types of samples, in particular strongly refractive objects that need to be placed in a liquid for index matching.
What	What is the specific thing that the student will do, and how does it fit inside the overall project? In this project, the student will develop and test different geometries, and will carry out measurements and reconstructions on samples of interest.
Special Knowledge	Knowledge of optics experiments; theoretical understanding of optics, diffraction and Fourier analysis; programming skills, familiarity with python.
Supervisor	Dr Pierre Thibault p.thibault@ucl.ac.uk