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Quantum Cascade Lasers

Breaking energy bands

Nature Photonics volume 3, pages 1315 (2009) | Download Citation

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By applying an extremely large magnetic field to break a semiconductor's energy bands into discrete levels, researchers have shown that it is possible for terahertz quantum cascade lasers to operate at unprecedented temperatures and wavelengths.

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Author information

Affiliations

  1. Carlo Sirtori is at the Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot-Paris 7, Bâtiment Condorcet, Case courrier 7021, F-75205 Paris, France.  carlo.sirtori@univ-paris-diderot.fr

    • Carlo Sirtori

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DOI

https://doi.org/10.1038/nphoton.2008.262

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