Beams of circularly polarized light (shown as blue spirals) can have two different mirror-image orientations, as shown here. When these beams strike a sheet of…
Posts published in “Optics”
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This is photo of the 5.5 mm diameter micromotor rotor made of specially oriented polymer film, on a pencil tip. Credit: UW Physics, Piotr Wasylczyk…
Laser cooled atom cloud viewed through microscope camera. Credit: University of Otago In a first for quantum physics, University of Otago researchers have “held” individual…
This is an artistic rendering of the terahertz field transmitted by an abstract object. Credit: University of Sussex Terahertz camera uses laser light patterns to…
Conversion (doubling) of light frequency using a nanoresonator. Credit: (left) Anastasia Shalaeva; (right) Koshelev et al. Science The reference particle captured light for a time…
This picture shows three images of titanium hydride. Left: high-angle annular dark-field (HAADF). Middle: the new technique described in the paper, showing both titanium and…
Two photons are entangled, one in polarization and the other in orbital angular momentum — twisted light. By passing the polarization photon through the fiber…
Claudia Gollner and the laser system at TU Wien. Credit: TU Wien A new, extremely efficient source of terahertz radiation has been developed at TU…
Former Rice University graduate student Xinwei Li in 2016 with the terahertz spectrometer he later used to measure entanglement in the conduction electrons flowing through…
Researchers used deep learning to create a new laser-based system that can image around corners in real time. The systems might one day let self-driving…
Let there be light — and it was directional: The world’s first electrically powered Yagi-Uda antenna was built at the University of Würzburg’s Department of…
The scheme of the experiment — circular polarization of light (marked in red and blue) transmitted through a cavity filled with liquid crystal depending on…
This is an illustration of how electrons can be imagined to move between two arms of a metallic nanoantenna, driven by a single-cycle light wave.…
Researchers used femtosecond lasers to analyze a perovskite solar cell. Credit: NTU Singapore Scientists from Nanyang Technological University, Singapore (NTU Singapore) in a collaboration with…
An illustration showing the concept of a space-time phase modulated metasurface consisting of resonating dielectric nanoantennas operating in reflection mode. A traveling phase modulation in…
The researchers tested their new nanoscopy approach technique by using it to image a 60-nanometer ring (inset). The new nanoscopy approach could resolve the ring…
Freestanding Microwire-Array Enables Flexible Solar Windows TSCs are emerging devices that combine the advantages of visible transparency and light-to-electricity conversion. One of the valuable prospective…
Light localized in space inside the topological crystal, entangled by interaction and topology. Credit: ITMO University A new approach to trapping light in artificial photonic…
Upon stimulation, two photons emerge from the quantum dot giving detailed information about the dynamics of the excited charges within the Quantum Dot (QD). Credit:…
A SLAC-led team has invented a method, called XLEAP, that generates powerful low-energy X-ray laser pulses that are only 280 attoseconds, or billionths of a…