Congratulations to Dr. Florian Spreyer. After a successful disputation of his thesis on Hybrid Metamaterials, Mr. Spreyer will leave us. We wish him every success in his further life and career.

When light hits a pinhole with a hole diameter below the wavelength as a plane wave, spherical waves can form behind the pinhole. If now a whole ensemble of holes with well-considered positioning is chosen, the different spherical waves can interfere with each other in any way. The superposition of the transmitted individual waves then results in a new wave front which can, for example, carry image information. Such a construct is called a photon…

Scientists at Paderborn University have now demonstrated, for the very first time, the spatial confinement of a light wave to a point smaller than the wavelength in a ‘topological photonic crystal’.

Who doesn't know the laser sword from the Star Wars movies? But what are lasers and how do they work? What else can you do with them? These were the questions the students of the MINT-EC-Camp: Laser Physics explored during their visit to the Department of Physics.

Dr. Sergey Kruk investigates behavior and application of light in the smallest dimensions.

Professor Thomas Zentgraf from the Physics Department has now been selected as the second Paderborn physicist as a new Fellow of the Max Planck School for Photonics.

Congratulations to Dr. Christian Schlickriede. After a successful disputation of his thesis on Nonlinear Metalenses, Mr. Schlickriede will leave us. We wish him every success in his further life and career.

Scientists from the Paderborn University and the Beijing Institute of Technology demonstrate cryptographic secret sharing using a holographic method.

In our recent publication entitled ‘Nonlinear Bicolor Holography Using Plasmonic Metasurfaces’ published in ACS Photonics, we show that two types of nanoparticle scatterers combined in one geometric metasurface can form a nonlinear colored hologram.

In a joint project between the group of Professor Thomas Zentgraf at the University of Paderborn and Professor Junsuk Rho at the Pohang University of Science and Technology in Korea, both groups plan to develop so-called multifunctional metasurfaces.

Professor Thomas Zentgraf elected as the new chairman of the Center for Optoelectronics & Photonics Paderborn on December 9, 2020.

New group picture!

On September 23, high school students and parents at the university can find out more about the "Young Students Program" of the Physics Department.

Since February 2020, Dr. Sergey Kruk from the Australian National University is workingin the group of Prof. Thomas Zentgraf at the University of Paderborn in the field of non-reciprocal nano-optics.

During a visit with our project partner Prof. Huang at the Beijing Institute of Technology in Beijing (China) we discussed the properties of nonlinear metasurfaces during a seminar. The exchange is financially supported by the DFG and the NSFC.