Tiny, biocompatible nanolaser could function inside living tissues
Researchers have developed a tiny nanolaser that can function inside of living tissues without harming them.
Optics
Researchers create first three-photon color-entangled W state
Researchers have constructed a quantum-mechanical state in which the colors of three photons are entangled with each other. The state is a special combination, called a W state, that retains some entanglement even if one of the three photons is lost, which makes it useful for quantum communication. Such entangled states also enable novel quantum applications and tests of fundamental physics.
Read moreHow molecular footballs burst in an x-ray laser beam
An international research team has observed in real time how football molecules made of carbon atoms burst in the beam of an X-ray laser. The study shows the temporal course of the bursting process, which takes less than a trillionth of a second, and is important for the analysis of sensitive proteins and other biomolecules, which are also frequently studied using bright X-ray laser flashes.
Read moreNew framework for nanoantenna light absorption
Harnessing light's energy into nanoscale volumes requires novel engineering approaches to overcome a fundamental barrier known as the 'diffraction limit.' However, researchers have breached this barrier by developing nanoantennas that pack the energy captured from light sources.
Read moreNew method for the measurement of nano-structured light fields
Physicists and chemists have jointly succeeded in developing a so-called nano-tomographic technique which is able to detect the typically invisible properties of nano-structured fields in the focus of a lens. Such a method may help to establish nano-structured light landscapes as a tool for material machining, optical tweezers, or high-resolution imaging.
Read moreUnified sensor to better control effects of shock waves
Researchers have developed a unified shock sensor to quickly and accurately dispel harmful shock waves.
Read moreEngineers create tunable, nanoscale, incandescent light source
Engineers have created what may be viewed as the world's smallest incandescent lightbulbs, collections of near-nanoscale materials called 'selective thermal emitters' that absorb heat and emit light. Their research could have applications in sensing, photonics and perhaps in computing platforms beyond the limitations of silicon.
Read moreClosing in on 'holy grail' of room temperature quantum computing chips
To process information, photons must interact. However, these tiny packets of light want nothing to do with each other, each passing by without altering the other. Now, researchers have coaxed photons into interacting with one another with unprecedented efficiency — a key advance toward realizing long-awaited quantum optics technologies for computing, communication and remote sensing.
Read moreLaser prototype for space-based gravitational wave detector
Researchers have announced a prototype for a laser at the heart of the first space-based gravitational wave observatory, known as the Laser Interferometer Space Antenna (LISA) mission.
Read moreQuantum physics: Simulating fundamental interactions with ultracold atoms
Physicists succeeded in precisely engineering key ingredients to simulate a specific lattice gauge theory using ultracold atoms in optical lattices.
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