Quantum cascade laser lives on the edge

Sunil Mittal () and Edo Waks ()

Nature, 2020, vol. 578, issue 7794, 219-220

Abstract: Devices known as quantum cascade lasers produce useful terahertz radiation, but are typically highly sensitive to fabrication defects. This limitation has now been overcome using a property called topological robustness.

Keywords: Applied physics; Optics and photonics; Engineering (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1038/d41586-020-00323-x

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