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“#Researchers demonstrate record speed with advanced spectroscopy technique” Researchers report the first dual-comb spectrometer with an acquisition speed of 10 gigahertz. The optical setup they used is shown here. Credit: David R. Carlson, National Institute of Standards and Technology and the University of Colorado in Boulder Researchers have developed an advanced spectrometer that can acquire…
“#Physicists make electrical nanolasers even smaller” Credit: Moscow Institute of Physics and Technology 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…
“#How to train a machine to see 3-D in the dark” Credit: CC0 Public Domain Researchers at the Australian National University (ANU) have developed a new way to create an almost perfect hologram in near darkness. Optical holograms are a clever way of producing a 3-D image of an object. They have a number of…
“#Researchers synthesize artificial solid-state crystal structures using laser light” Schematic representation of an experimental system. Credit: Pickup, L. et. al./Nature Communications Researchers at the Hybrid Photonics Laboratories in Skoltech and Southampton (U.K.), in collaboration with Lancaster University (U.K.), have demonstrated a new optical method to synthesize artificial solid-state crystal structures for cavity polaritons using only…
“#Scientists develop a technique to dynamically curve a photon jet” Credit: Tomsk Polytechnic University Scientists at Tomsk Polytechnic University jointly with international colleagues have found a simple technique to dynamically curve a photonic jet, turning it into a photonic hook. The method was published in Optics Letters. According to the authors, the discovered effect will…
“#Single photons from a silicon chip” Schematic representation of a single defect in a silicon wafer created by the implantation of carbon atoms, which emits single photons in the telecom O-band (wavelength range: 1260 to 1360 nanometers) coupled to an optical fiber. Credit: HZDR/Juniks Quantum technology holds great promise: Just a few years from now,…
“#Ultra-fast magnetic switching with potential to transform fiber optical communications” Credit: Trinity College Dublin Researchers at CRANN and Trinity’s School of Physics have discovered that a new material can act as a super-fast magnetic switch. When struck by successive ultra-short laser pulses it exhibits “toggle switching” that could increase the capacity of the global fiber…
“#Upgraded X-ray laser shows its soft side” The Linac Coherent Light Source’s new undulators each use an intricately tuned series of magnets to convert electron energy into intense bursts of X-rays. The “soft” X-ray undulator stretches for 100 meters on the left side of this hall, with the “hard” x-ray undulator on the right. Credit:…
“#Full-face readings can optimize fever screening with infrared thermographs” Thermal image of FDA scientist Q. Wang, with temperature map of an eye. Credit Q. Wang. Thermography has been a hot topic this year, due to the need for quicker diagnostics to detect and prevent the spread of COVID-19. Noncontact infrared thermometers (NCITs) are currently a…
“#Physicists ‘trick’ photons into behaving like electrons using a ‘synthetic’ magnetic field” Straining a honeycomb metasurface generates an artificial magnetic field for light which can be tuned by embedding the metasurface inside a cavity waveguide. Credit: University of Exeter Scientists have discovered an elegant way of manipulating light using a ‘synthetic’ Lorentz force—which in nature…