Two groups of students, will start their minor project in Computational Science and Engineering at Charged Particle Optics. One group (4 students) will be coached by Kerim Arat, and the other group (3 students) will be coached by Luc van Kessel.

Gyllion Loozen and Jacob Caro have published an article in Optics Express on the capabilities of an on-chip dual-waveguide optical trap for stable trapping of extracellular vesicles (EVs). EVs are small, cell-derived particles that strongly attract attention as biomarkers for cancer.

Stef will do his MSc project with Kees Hagen on delivering proof on principle of a multi-beam splitter array and a deflector array in a scanning electron microscope. He will also critically review the design and see if it can be further optimized. And, in cooperation with Thermo Fisher, he is going to see whether such a beam splitter array can also be used for STEM.

NWO heeft een aanvraag voor het Center for Ultrasound Brain imaging at Erasmus MC (CUBE), waarbij ook de TU Delft betrokken is, goedgekeurd. De wetenschapsfinancier maakt een kleine 2,5 miljoen euro vrij voor de realisatie van CUBE.

Bingxin will work on engineering the substrate for particle displacements. Her supervisor is Paul Urbach.

Fran will work with scatteromety for nanoparticle detection. His supervisors are Silvania Pereira and Dmytro Kolenov.

Het onderzoeksveld van de lichtmicroscopie heeft zich de afgelopen jaren snel ontwikkeld. Door de uitvinding van een techniek genaamd superresolutie-fluorescentiemicroscopie kunnen sinds kort zelfs de kleinere onderdelen van een levende cel in beeld worden gebracht. Met een slimme aanpassing aan de superresolutie-techniek hebben onderzoekers van de TU Delft de grenzen van wat mogelijk is nu nog verder opgerekt. Waar eerder objecten van maximaal 10 tot 20 nanometer in beeld konden worden gebracht, maakt hun methode het mogelijk om scherp stellen op structuren van maar liefst 3 nanometer.

In this article, a sparsity‐inducing scheme based on widefield stimulated emission depletion, which requires stringent control of the polarization state of both the excitation and depletion laser, is introduced by Bernd Rieger and co‐workers for superresolution fluorescence microscopy. The ideal state involves excitation and depletion lasers with linear polarizations, orthogonally oriented in the sample plane. This state is obtained from linearly polarized light from the laser, which is made elliptically polarized before reflecting off the dichroic mirror.

He will work on “particle averaging” techniques for single molecule localisation microscope. He will continue the work of Hamidreza Heydarian where we successfully introduced this idea. His first task will be to extend the method from 2D to 3D. His supervisors will be Sjoerd Stallinga and Bernd Rieger.

We would like to welcome our new master student Marten Kruidhof. He will work on “Acoustic imaging of a simple phantom using a silicon ring-resonator sensor for ultrasound.” His supervisors are Boling Ouyang and Jaap Caro.