News tagged with emissions

Quantum dot ring lasers emit colored light

Researchers have designed a new type of laser called a quantum dot ring laser that emits red, orange, and green light. The different colors are emitted from different parts of the quantum dot—red from the core, green from ...

dateJan 22, 2018 in Nanophysics feature
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Giant ionized gas nebula found by astronomers

(—A group of astronomers has discovered a giant nebula of ionized gas extending over 300,000 light years. This nebula turns out to be associated with the quasar dubbed the "Teacup." The finding was presented November ...

dateNov 14, 2017 in Astronomy report
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