News tagged with laser emission

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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Controlling electrons in time and space

In an electron microscope, electrons are emitted by pointy metal tips, so they can be steered and controlled with high precision. Recently, such metal tips have also been used as high precision electron sources for generating ...

dateNov 15, 2016 in Optics & Photonics
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A little impurity makes nanolasers shine

Scientists at ANU (The Australian National University) have improved the performance of tiny lasers by adding impurities, in a discovery which will be central to the development of low-cost biomedical sensors, quantum computing, ...

dateJul 05, 2016 in Nanophysics
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