For simplicity, it is often assumed that the imaging system consists of a single thin lens. In the case of the barcode reader, the imaging system consists of several thick lenses and aperture stop, therefore this assumption is not valid. One of the topics of the research is to study the right position to place …
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During the manufacture of semiconductor devices such as Mosfetts it is essential to inspect the device for cracks and other damage. It is required to obtain 3D images at NIR wavelength for which the semiconductor is transparent. The images should have high resolution and should be acquired at high speed. This project is carried out …
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LINX is a NWO-TTW perspective programme with the aim to apply various lensless imaging techniques, from ptychography to scatterometry, while using wavelengths in the EUV and Soft X-Ray regime. This programme is a collaboration with five largest Dutch universities and major (inter)national industry partners with a budget of ±4MEuro. The aim is to generate innovative …
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Through an optical system an image can be formed. But how to improve its resolution? Is there a limit? Can we reduce the number of optical elements with the same results? Can we even obtain an image without any lens? Here are some questions we are eager to solve.
Focused radially polarized beam is used to image non-fluorescent specimens to enhance the spatial resolution of conventional confocal microscopes.
Multichannel computational camera for AutoID applications
PhD Candidate in the Imaging Physics Department at TU Delft under Dr. Florian Bociort and Dr. Silvania Pereira, focusing on developing global optimization algorithms, with a particular emphasis on saddle-point detection, to address the complex, high-dimensional design landscape of advanced optical imaging systems. He holds a bachelor’s degree in Engineering Physics and a master’s degree …
Hello My Name is Roald, A PhD student in QuPsi. My main focus of my PhD is bridging the fields of SNSPD’s, high Tc superconductors and integrated photonics. A SNSPD is a superconducting nanowire single photon detector. The operating principle is quite easy to follow. We bring this device close to a regime where it …
Stefan Witte received his PhD (cum laude) in 2007 from the Vrije Universiteit Amsterdam, for research on intense ultrafast laser development and precision spectroscopy with frequency combs. He did postdoctoral work at on nonlinear microscopy and biomedical imaging (Vrije Universiteit) and on ultrafast electron dynamics and lensless imaging with high-harmonic sources (JILA, University of Colorado). …
In the back of a cupboard of our group, (Optics Cluster at the Imaging Physics department of Applied Sciences), a box full of interesting objects had been hiding for almost thirty years. Nestled amongst prisms and scopes, was a mysterious microscope. Most of the objects dated from the mid-20th century, but this microscope looked older …