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World’s thinnest graphene light bulb

Young Duck Kim and Prof. James Hone

June 16, 2017: Led by Young Duck Kim, a postdoctoral research scientist in James Hone?s group at Columbia Engineering, a team of scientists from Columbia, Seoul National University (SNU), and Korea Research Institute of Standards and Science (KRISS) reported that they have demonstrated?for the first time?an on-chip visible light source using graphene, an atomically thin and perfectly crystalline form of ...

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Alternative design for blue-emitting laser diodes developed

Alternative design for blue-emitting laser diodes developed

June 15, 2017: Researchers at the University of California, Santa Barbara (UCSB) have developed an alternative design of blue-emitting laser that has a current aperture formed by photoelectrochemical etching. Ludovico Megalini, spokesman for the UCSB team, said that this work shows that selective lateral etching, in a controllable way, is possible in a complex nitride-based structure, such as a laser ...

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