2+ hour, 15+ min ago   (649+ words) Every quantum network ever proposed faces the same awkward problem: the superconducting circuits that store and process quantum information speak in microwaves, while the optical fibers that carry signals across cities and continents speak in light....

9+ hour, 12+ min ago   (658+ words) For decades, one of the most stubborn bottlenecks in building faster, greener computer memory has been a simple question of timing: how do you deliver an electrical pulse short enough and powerful enough to flip a magnetic bit in a…...

10+ hour, 34+ min ago   (86+ words) A pinch of graphene may be all it takes to make liquid crystals dramatically more useful in the infrared. Researchers in Japan have shown that dispersing tiny flakes of the one-atom-thick carbon material into a common nematic liquid crystal boosts…...

21+ hour, 55+ min ago   (761+ words) {“title”:”Chip-Scale Optical Circulator Promises Bidirectional 800G Fibre Transmission”,”html”:”Optical networks are built on a deceptively simple problem: light travelling in a fibre almost always wants to go both ways at once, and keeping those two directions from interfering with…...

1+ day, 3+ hour ago   (73+ words) Light passing through a carefully engineered nanostructure can behave in ways that ordinary optics never allows. It can cancel itself out at certain frequencies, reinforce itself at others, and produce sharply asymmetric spectral lines that seem to defy the smooth,…...

3+ day, 10+ hour ago   (55+ words) Optical frequency combs have transformed the way scientists measure light and time, earning the Nobel Prize in Physics in 2005 and underpinning technologies ranging from atomic clocks to exoplanet detection. Yet the miniature on-chip versions of these combs, known as soliton…...

4+ day, 13+ hour ago   (454+ words) Researchers at the Cape Peninsula University of Technology in Cape Town have reported a systematic development process aimed at building a single-photon detector that costs a small fraction of the commercial instruments that currently dominate quantum optics laboratories....

5+ day, 11+ hour ago   (592+ words) In a breakthrough that could reshape how engineers manipulate light at the nanoscale, an international research team has demonstrated a quantum-well metasurface capable of dramatically enhancing nonlinear polarization through free-space optical access....

1+ week, 1+ day ago   (87+ words) Femtosecond lasers, the ultrashort pulsed light sources prized for their ability to carve matter with almost surgical precision, have long promised a route to fabricating display technologies at scales far smaller than conventional lithography can comfortably reach. Now, a team…...