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Nanoscience Colloquia

Open, advanced talks on nanoscience

The Nanoscience Colloquia – from the latin word ”loqui” that means talk – are a series of advanced talks on nanoscience, open to everyone within and outside academia. Welcome to join the conversation – see you online in Zoom!

Flowering magnolias to symbolize spring term. Foto: Kennet Ruona

2023 Colloquia

Nanoscience colloquia are on Thursdays at 15:15 (unless otherwise stated). Currently, colloquia are being held in Zoom and the meeting link will be sent to all NanoLundians shortly before the start. In case you are not on our "All at NanoLund"-mailing list and would like to receive the meeting link, please contact Ville Maisi.
Ville Maisi´s personal page and contact information

Colloquia scheduled

27 April 2023 15:15, k-space, Physics Department 

Warmly welcome to this colloquium held by Dr. Helmut Schift, PSI, Switzerland.

Laser-based direct write lithography as a tool for 3D grayscale patterning

Abstract: Direct write lithography (DWL) is a versatile maskless lithography, and tools with reasonable throughput have been developed for fast prototyping and small scale production that allow for cost-efficient fabrication of microstructures. Apart from promising advances in DWL using two-photon absorption, the most common DWL tools are still those with non-intensity dependent material absorption (one-photon absorption) that are both used for binary and grayscale lithography. During two years of experiments with our new Heidelberg Instruments DWL 66+, we have patterned a multitude of structures from slopes, staircases, microlenses, and explored hybrid patterning schemes using DWL and nanoimprint lithography.
CV: Helmut Schift is researcher and group leader at the Paul Scherrer Institute (PSI) in Switzerland. He studied electrical engineering at the University of Karlsruhe, and performed his Ph.D. studies at the Institute of Microtechnology Mainz (IMM), Germany. He has been working in the field of Nanoimprint Lithography (NIL) since about 27 years. At PSI he was starting with the investigation of antiadhesive layers, went into squeeze flow and nanorheology, set-up processes for stamp copying and applied nanoimprint to a range of applications. Currently he is working on 3D lithography using direct laser writing, on glass molding and on cleaning procedures for metal waveguides for ITER. Besides his research, he is consultant for research integrity at PSI.

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Future colloquia will be organized by Ville Maisi, so if you have ideas for speakers that you would like to invite, please contact Ville. 
Ville Maisi´s personal page and contact information