A pulse of light sets the tempo in the material. Atoms in a crystalline sheet just a few atoms thick begin to move—not randomly, but in a coordinated rhythm, twisting and untwisting in sync like ...

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The resolution of far-field optical microscopy stagnated for a century, but a quest began in the 1990s leading to nanoscale imaging of transparent fluorescent objects in three dimensions. Important ...

Last week, while I was brushing my teeth before bed, my phone flashed up with a voice note sent by a close friend. "Rachel!" my friend yelled down the phone with some urgency. "The days of the dick ...

Making a perfect lens that produces flawless images has been a dream of lens makers for centuries. In 1873, Ernst Abbe discovered a fundamental 'diffraction limit' in optics: whenever an object is ...