June 26, 2020
Unified view of emission at the nanoscale
Most of the light around us is the result of a process called spontaneous emission. Controlling the spontaneous emission of light by a microscopic emitter is a topic of intense interest in Nanophotonics, because it can be used in many applications, from sending a message from one mobile phone to another, to visualizing a cell […]
Artist impression of the periodically poled crystal
June 24, 2020
Optical quantum advantage within reach for SPDC sources
Fifty is a critical number for quantum computers capable of solving problems that ‘classic’ supercomputers cannot solve anymore. Proving ‘quantum supremacy’ requires at least 50 so-called ‘qubits’. For quantum computers working with light, it is equally necessary to have at least 50 photons. And what’s more: these photons have to be perfect, or else they […]
June 23, 2020
Shielding vacuum noise with 3D nanostructures
Many efforts are being made worldwide to realize nanostructures that control the omnipresent and unavoidable so-called vacuum noise, which affects many physical processes such as the emission of light. Nanostructures central to this novel technology are photonic crystals that manipulate the flow of light similar to how semiconductors manipulate electronic currents in a laptop’s chip. […]
June 2, 2020
Photonic crystals: “even thin is functional” (COPS in collaboration with Tokyo and Kyoto)
Photonic crystals are the nanostructures that can manipulate photons by means of an energy gap, similar to how the semiconductors in computer chips manipulate electronic current. It was always thought that photonic crystals should be thick and bulky to be functional. Scientists from the University of Tokyo, the University of Electro-Communications in Tokyo, the Kyoto […]
May 11, 2020
Partial reopening of COPS lab
After a long period of Corona-related lab closure, we are glad that we can restart -with restrictions- some of our lab work as of today. Especially for our foreign members the sitting at home was hard, as COPS PhD student Alfredo Rates nicely stated in an interview with Utoday. The waiting is not over yet […]
March 2, 2020
Master colloquium Ben Kassenberg
Ben Kassenberg has successfully defended his report with the title “Controllable Josephson junction for photon Bose-Einstein condensation” on 28th February 2020. He was awarded the degree of Master of Science (M.Sc.): congratulations Ben! The work was carried out in the Complex Photonic Systems (COPS) chair in the MESA+ Institute for Nanotechnology under the supervision of […]
February 26, 2020
Quantum Key Establishment via a Thick Glass Fiber
Securing our vulnerable computer systems constantly demands alertness. But what about the physical connections, the glass fibers connecting the computers? Could hackers the intercept the light from the fiber, and simply get confidential data, or take over the connection? Not if the new method, designed by University of Twente researchers, is used. They designed a […]
February 18, 2020
Experimental probe of a complete 3-D photonic band gap
COPS is honored by the popularizing press articles listed below: https://www.utwente.nl/en/ https://phys.org/ https://www.engineersonline.nl/ https://www.azooptics.com/ http://www.engineeringnet.be/ that were published on the occasion of COPS paper entitled “Experimental probe of a complete 3D photonic band gap” by Manashee Adhikary, Ravitej Uppu (now at NBI Denmark), Cornelis Harteveld, Diana Grishina (now at ASML), and Willem Vos, that was […]
Chris en Matthijs bij de QSA demo
January 23, 2020
COPS @ Quantum Corner at Physics@Veldhoven
At this year’s Physics@Veldhoven, COPS-AQO scientists brought a Quantum Secure Authentication demonstrator setup to the Quantum corner highlighting the National Agenda Quantum Technologies (NAQT). We also brought the photonic processor where we have performed quantum-optical experiments with, together with colleagues from Oxford and our neighbours LPNO. QUANT colleague Floris Zwanenburg displayed a wafer with new […]
January 15, 2020
COPS alumnus Rajesh Nair becomes Associate Professor at the Indian Institute of Technology
COPS congratulates its alumnus Dr. Rajesh V. Nair for being selected as Associate Professor in the Department of Physics at Indian Institute of Technology (IIT) Ropar, India, after a highly competitive selection procedure. His research interests include mesoscopic light transport and emission in both natural and engineered photonic nanostructures, and quantum nanophotonics with solid state […]
January 10, 2020
Thermodynamics of information processing
An overview article by COPS member Jan Klaers on the thermodynamics of switching processes in a CPU is published in the January issue of the Physik Journal (in German).
December 28, 2019
OSA interviews with Willem Vos
On the occasion of the large June 2019 LASER World of PHOTONICS, the Optical Society (OSA) staff interviewed COPS scientist Willem Vos on a number of topics. As a result, OSA recently published 4 videos on: what inspired Willem to work on nanophotonics, his current research, his encouragements to young scientists, and his personal advice […]