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).|
VIDI Grant for David Marpaung
David Marpaung (Nanophotonics), currently at the University of Sydney (http://sydney.edu.au/science/people/david.marpaung.php), has received a prestigious grant of the Netherlands Science Organisation (NWO, VIDI). His research is to be hosted in the Laser Physics and Nonlinear Optics group (LPNO) and the Applied Nanophotonic research cluster of the UT (ANP). His activities are supported by various Dutch companies that are working in the field of integrated photonics, for instance Lionix International, Smart Photonics BV and Phoenix BV.
Dr. Marpaung will investigate new technologies for integrated photonic systems, for processing information through interactions between light and 'hypersound', to realize, e.g., on-chip Brillouin processors for future wireless and optical networks.
For more information, check NWO's 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.