One step towards a daily-use deep UV light source for sterilization and disinfection

Researchers construct a gallium nitride optical microcavity with high reflectivity distributed Bragg reflectors to double the frequency of incoming light, which may be utilized for a safe and practical deep UV light source with bactericidal effects

Touchless technology could enable early detection and treatment of eye diseases that cause blindness

A non-contact laser imaging system could help doctors diagnose and treat eye diseases that cause blindness much earlier than is now possible. The new technology, developed by engineering researchers at the University of Waterloo, is designed to detect telltale signs…

Researchers tame silicon to interact with light for next-generation microelectronics

Skoltech researchers and their colleagues from RAS Institute for Physics of Microstructures, Lobachevsky State University of Nizhny Novgorod, ITMO University, Lomonosov Moscow State University, and A.M. Prokhorov General Physics Institute have found a way to increase photoluminescence in silicon, the…

Australian researchers create quantum microscope that can see the impossible

In a major scientific leap, University of Queensland researchers have created a quantum microscope that can reveal biological structures that would otherwise be impossible to see. This paves the way for applications in biotechnology, and could extend far beyond this…

Femtosecond spectroscopy and first-principles calculations shed light on compositional dependence of

Researchers from Skoltech and Ludwig Maximilians-Universität (LMU) in Germany have studied the fundamental properties of halide perovskite nanocrystals, a promising class of optoelectronic materials. Using a combination of theory and experiment, they were able to show and explain an intricate…

Entangled quantum memories for a quantum repeater: A step closer to the Quantum Internet

* ICFO researchers report in Nature on having achieved, for the first time, entanglement of two multimode quantum memories located in different labs separated by 10 meters, and heralded by a photon at the telecommunication wavelength. * The scientists implemented…

A novel nitrogen-doped dual-emission carbon dots as an effective fluorescent probe for ratiometric detection dopamine

How to construct the dual emission nitrogen-doped carbon dots (CDs) by a simple method? Professor Lili Ren with her collaborators proposed a new strategy to prepare such materials which were used to the detection of dopamine. The traditional ratiometric fluorescence…