Reconstructing the phase of a field from intensity measurements is a long-standing and ubiquitous challenge, known as the phase retrieval problem. The new phase reconstruction method by Yifeng Shao, PhD student @ImPhys, overcomes several challenges of conventional iterative CDI algorithms and holographic methods.

On May 17th, 2019 Jeroen Heldens successfuly defended his PhD thesis on "Raman based identification of on-chip trapped single micro-organisms".

Christiano Glessi is a PhD student, on a secondment from Oslo University, as part of the ELENA Marie Curie programme. He is working on tests of novel precursors for electron beam induced processing. Christiano collaborates with Aya Mahgoub and is supervised by Kees Hagen.

Joseph Braat, a former professor of optics in the ImPhys department, has finally wrapped up his contribution to the book Imaging Optics. The book was officially published in print by Cambridge University Press on the 2nd of May 2019. In the accompanying text, you can read about his book-writing Odyssey of 10 years.

A team of scientists at Harvard University, led by professor dr. Adam Cohen and first author dr. Yoav Adam, and including Imaging Physics’ dr. Daan Brinks, today published a paper in Nature, for the first time showing a ‘live broadcast of the brain’, ‘transforming neural electrical signals into sparks visible through a microscope.’

“On-chip silicon Mach–Zehnder interferometer sensor for ultrasound detection”. This experimental work on a novel ultrasound sensor is the result of a collaboration of members of three ImPhys sections and a partner of Ghent University. In the Letter we report an integrated photonics Mach-Zehnder interferometer for ultrasound detection, fabricated in silicon-on-insulator technology.

The Comenius Teaching Fellow has been granted to the project of Forrest Bradbury, University College Amsterdam, in which TU Delft is also involved. They will be developing a lab course in which students use sensors in mobile phones and arduinos.

The KinderAcademie is the weekend school in Delft, where children from groups 7 and 8 of the primary school learn about all kinds of different professions. The majority of the children is coming from emigration families or are growing up in a poverty situation. The Kinderacademy aims to inspire the children and help them to broaden their horizons in order to make new choices for their future.

For their seven year anniversary the journal "Methods and Applications in Fluorescence" issued a special edition "Highlights" with some of the excellent fluorescence research from the journal. One of the selected articles is the publication of ImPhys researchers Sjoerd Stallinga and Bernd Rieger et al on on super-resolution microscopy.

Freek Pols started as teacher/innovator of first year physics practical work on 1 March 2019. He will be responsible for all practical work in first year physics and has been given the task to innovate the current curriculum.