PhD vacancy in Optics at the ImPhys department of Delft University of Technology (SYNOPTICS project 3)

In project 3 “Subwavelength & 3D Imaging” of the TTW Persectief Program SYNOPTICS there is an open PhD position in the field of 3D imaging of semiconductor structures using NIR light. SYNOPTICS is a programme consisting of 6 projects with 12 PhDs and 4 postdocs in the field of optical imaging for different application such as small particle detection, subwavelength imaging, aerosol detection and 3D imaging. The common approach of the program is that in principle all properties of light (amplitude, phase, polarisation and wavelength) are used to maximize resolution, sensitivity and speed. To prevent too large data streams, sets of measured data have to determined with maximum information content and techniques from compressed sensing are applied. One research project concerns the realization of a novel heterodyne hyperspectral source based on dual comb technology.

The consortium will organize several workshops where experts will teach the PhDs recent developments in computational optics, inverse problems, frequency combs technology and 3D imaging. There are 16 companies that are potential users of the research results of SYNOPTICS.

The aim of the PhD project “3D imaging of semiconductor structures” is to detect cracks and damages in semiconductor devices. The challenge is to obtain and analyse images at very high speed and at sufficient lateral and axial resolution. 3D imaging is the holy grale of optical imaging because the image obtained by focusing on particular depths is blurred by out of focus scattered fields. The wavelength used is in the NIR (~1200 nm) because the materials are not transparent for shorter wavelengths.

In the initial stage of the project different 3D imaging methods will be investigated. One of these techniques is optical coherence tomography for which there is already a set-up in Delft.

General information
Dutch universities are a popular destination for many PhD students. Doctoral researchers are highly regarded by Dutch universities, which offer many benefits for students:

  • Employee status – PhD students in the Netherlands are paid university employees, with associated rights and responsibilities such as formal teaching
  • Four year funding – funding is available for a 4 year PhD project.
  • Historic university system – the Netherlands has several universities dating back to the 16th century
  • Global recognition – 12 Dutch universities are ranked in the top 200 in the world for 2019

If you are interested in this position or would like to have more information, please contact

Professor Paul Urbach
Professor of Optics Delft University of Technology
Scientific Director of the Dutch Optics Centre