3-D image reconstruction of a sample of irradiated fuel, showing the three thresholded uranium phases co-existing with pores. Credit: Maria Okuniewski / Purdue University In a feat requiring perseverance, world-leading technology, and no small amount of caution, scientists have used intense X-rays to inspect irradiated nuclear fuel. The imaging, led […]

Schematic representation of a processor for matrix multiplications which runs on light. Credit: University of Oxford The exponential growth of data traffic in our digital age poses some real challenges on processing power. And with the advent of machine learning and AI in, for example, self-driving vehicles and speech recognition, […]

Highly efficient, pure-blue organic light-emitting diodes (OLEDs) developed by researchers at Kyushu University in Japan are being tested to measure their lifetime. Based on hyperfluorescence, which uses a two-molecule process to emit light, the OLEDs emit pure-blue emission and exhibit significantly improved lifetimes compared to other highly efficient devices, all […]

Annular holes in a thin gold film filled with silicon dioxide enable ultrastrong coupling between light and atomic vibrations. This structure provides opportunities to probe molecules interacting with quantum vacuum fluctuations and develop novel optoelectronic devices. Credit: Oh Group, University of Minnesota Discovery provides insight for developing next generation optoelectronic […]

Fiber optics couple laser light directly into the ion-trap chip. When in use, the chip is cooled to cryogenic temperatures in a vacuum chamber, and waveguides on the chip deliver the light to an ion trapped right above the chip’s surface for performing quantum computation. Credit: Image courtesy of the […]

The integrated detector combines a silicon photonic chip with a silicon micro-electronics chip, yielding advanced speed in detecting quantum light. Credit: University of Bristol Researchers have developed a tiny device that paves the way for higher performance quantum computers and quantum communications, making them significantly faster than the current state-of-the-art. […]

Credit: CC0 Public Domain Researchers have developed a new approach that uses a single laser cavity to create two high-power optical frequency combs emitting high-power femtosecond pulses. The new development paves the way for portable dual-comb light sources for applications such as spectroscopy and precision distance measurement. Optical frequency combs […]

Credit: Ant Rozetsky ITMO University scientists have conducted several experiments to investigate polymeric quasicrystals that ultimately confirmed their initial theory. In the future, the use of quasicrystals may open up new possibilities for laser and sensor design. This paper was published in Advanced Optical Materials. Crystals are solids with a periodic […]

Electrically pumped surface plasmon-polariton nanolaser. Credit: Dmitry Fedyanin Researchers from the Moscow Institute of Physics and Technology and King’s College London cleared the obstacle that had prevented the creation of electrically driven nanolasers for integrated circuits. The approach, reported in a recent paper in Nanophotonics, enables coherent light source design on […]

Schematic of a laser-illuminated nano-optical probe investigating a strained nanobubble of tungsten diselenide (WSe2; green and yellow balls), a 2-dimensional semiconductor. The single layer of WSe2 is sitting on a layer of boron nitride (blue and grey balls). Credit: Nicholas Borys/Montana State University Using sophisticated optical microscopy techniques, Columbia engineers […]