Abstract: A reconfigurable and wideband photonic method is proposed for microwave photonic harmonic down-conversion based on cascaded four-wave mixing in a semiconductor optical amplifier (SOA). The ...

Ionic liquids (ILs) are versatile salts in liquid form, offering tunable properties through different anion-cation combinations. This Primer reviews synthetic routes for ILs, emphasizing ...

We've tested hundreds of smart home products in more than 20 categories to help determine which ones are best for every room in (and out of) the house. I'm PCMag's managing editor for consumer ...

Leaders attending the COP30 U.N. Climate Summit pose for a group photo in Belem, Brazil, Friday, Nov. 7, 2025. THE CANADIAN PRESS/AP-Fernando Llano Canadian climate negotiators are headed to Brazil ...

In the age of social media and Artificial Intelligence (AI), a TikTok user by the name Asivile Gazi was met with a messy tech surprise. Gazi found herself in the middle of a modern-day detective story ...