Read article: Photons stay entangled despite huge jump in frequency
New technique preserves quantum correlations between two photons even when the frequency of one is increased by 125 terahertz
Read article: Quantum batteries harvest energy from light
Quantum mechanical effects enable more efficient energy-capture technology
Read article: ‘Coherent optical engineering’ turns opaque material temporarily transparent
New approach could also be used to create artificial materials such as exotic quantum magnets
Read article: Interference wall captures single photons
New technique could help avoid the need for highly optically nonlinear materials
Read article: Chalcogenide glasses open up to visible and ultraviolet wavelengths
Nanostructured metasurface overcomes a previous limitation for these materials
Read article: Atoms and molecules make vortex beams
"Twisted" wavefront structures had previously only been seen in photons and electrons
Read article: Indestructible light waves travel through opaque material as if it isn’t there
Scattering-invariant modes of light are transmitted through a disordered medium in the same way as through homogeneous space
Read article: Complex light waves measure hidden objects
Tailoring the spatial profile of the incident laser beam enables accurate measurement of objects hidden behind disordered structures
Read article: Tiny particles produce huge photon avalanches
Highly nonlinear process observed in lanthanide nanocrystals could lead to advanced imaging, sensing and light detection applications
Read article: Spin in unpolarized light defies conventional picture
Measurements of transverse spin from unpolarized light sources raise further questions over the physical origins of spin angular momentum
