Crystalline arsenic trisulfide shows record photorefractive response and can be laser-patterned at 500-nm resolution without ...

A property of a material that changes the speed of light, computed as the ratio of the speed of light in a vacuum to the speed of light through the material. When light travels at an angle between two ...

(Nanowerk Spotlight) Manipulating light is crucial for modern technologies, from the optical fibers transmitting internet data to the lasers in our smartphones. Despite significant advancements, our ...

A light-sensitive crystal is opening the door to a new era of “light-written” technology. Arsenic trisulfide can be reshaped ...

As cataract surgery evolves toward a precision refractive paradigm, the accuracy of postoperative refractive prediction for ...

Scientists have discovered novel optical properties in arsenic trisulfide (As2S3), a crystalline van der Waals semiconductor.

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Materials that have a negative refractive index at optical wavelengths have now been fabricated by scientists in Europe and the US for the first time. Rob van den Berg explains why they could ...

WEST LAFAYETTE, Ind. – Engineers at Purdue University are the first researchers to create a material that has a "negative index of refraction" in the wavelength of light used for telecommunications, a ...