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 E-Mail IMAGE: Scientists at SLAC National Accelerator Laboratory and Stanford University discovered that squeezing a promising lead halide material in a diamond anvil cell (left) produces a so-called "black perovskite " (right)... view more  Credit: Greg Stewart/ SLAC National Accelerator Laboratory Among the materials known as perovskites, one of the most exciting is a material that can convert sunlight to electricity as efficiently as today's commercial silicon solar cells and has the potential for being much cheaper and easier to manufacture. There's just one problem: Of the f...

SPIE, The International Society for Optics and Photonics, Announces Its 2021 Society Awards Written by AZoOpticsJan 13 2021 The Awards Committee of SPIE, the international society for optics and photonics, today announced the recipients of its prestigious annual awards. Honoring transformative advancements in multiple areas — including medicine, astronomy, lithography, optical metrology, and community-focused achievements — the Society's awards recognize technical accomplishments as well as committed service to SPIE and support of its organizational mission. Maryellen Giger, the A.N. Pr...

SPIE announces its 2021 society awards 13 Jan 2021 21 recipients represent achievements across wide range of light-based sciences and key advances made with these technologies. optics.org, has announced the recipients of its prestigious annual awards. Honoring transformative advancements in multiple areas — including medicine, astronomy, lithography, optical metrology, and community-focused achievements — the Society's awards recognize technical accomplishments as well as committed service to SPIE and support of its organizational mission. Categories and winners SPIE Gold Medal: ...

 E-Mail IMAGE: An illustration of the chain-reaction process that underlies the photon avalanching mechanism Columbia Engineering researchers have realized in their nanoparticles. In this process, the absorption of a single low-energy photon... view more  Credit: Miko?aj ?ukaszewicz/ Polish Academy of Sciences New York, NY--January 13, 2021--Researchers at Columbia Engineering report today that they have developed the first nanomaterial that demonstrates "photon avalanching," a process that is unrivaled in its combination of extreme nonlinear optical behavior and efficiency. The rea...

Credit: Tour Group/Rice University. Rice University scientists have extended their technique to produce graphene in a flash to tailor the properties of other 2D materials. The labs of chemist James Tour and materials theorist Boris Yakobson reported in the American Chemical Society’s ACS Nano they have successfully “flashed” bulk amounts of 2D dichalcogenides, changing them from semiconductors to metallics. Such materials are valuable for electronics, catalysis and as lubricants, among other applications. The process employs flash Joule heating — using an electrical charge to dramatic...