Integrated microwave photonics
|Photonics and radio signals join forces for high-speed mobile data communication, like in 5G communications. At the same time, the applications of ‘integrated microwave photonics’ go way beyond telecom. This progress often comes from directions you would not expect in the first place. In a review paper in Nature Photonics), David Marpaung gives together with experts Jianping Yao of the University of Ottawa and Jose Campany of the University of Valencia a vision on the next phase of photonic chips, for example in brain-inspired, ‘neuromorphic’ optical computing. (see also UT Press release).|
World's most narrowband diode laser on a chip
|Researchers of the Laser Physics and Nonlinear Optics group developed, in collaboration with researchers of the Lionix Company, the world’s most narrowband diode laser on a chip exhibiting a quantum limited spectral bandwidth of less than 300 Hz. This laser concept represents a breakthrough in the fast-growing field of photonics, and will bring applications such as 5G internet and accurate GPS closer (see also UT Press release).|
Light particles in a pin-ball machine
Dutch national quality newspaper "NRC" published a one-page article in the science section on our recent article in Phys. Rev. A on "Programmable two-photon quantum interference in 10^3 channels in opaque scattering media".
Quantum physics inside a drop of paint
Inside a drop of paint, light is scattered so often that it seems impossible to demonstrate quantum effects. But despite the thousands of possible paths the light can take, like a drunk person inside a labyrinth, researchers of the University of Twente now show that there are just two exits. Depending on the light pattern that enters the paint, two photons always come out through the same exit, or through different ones – as though they avoid each other. The scientists of UT’s MESA+ Institute for Nanotechnology publish about these remarkable findings in the Physical Review A journal.