High-power surface emission from terahertz distributed feedback lasers with a dual-slit unit cell (Articolo in rivista)

Type
Label
  • High-power surface emission from terahertz distributed feedback lasers with a dual-slit unit cell (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Mahler L. , Tredicucci A., Beltram F., Walther C. Faist J., Beere H.E. and Ritchie D.A. (2010)
    High-power surface emission from terahertz distributed feedback lasers with a dual-slit unit cell
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Mahler L. , Tredicucci A., Beltram F., Walther C. Faist J., Beere H.E. and Ritchie D.A. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 96 (literal)
Rivista
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  • Issue: 19 Article Number: 191109 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. CNR, Ist Nanosci, NEST, I-56127 Pisa, Italy (Mahler L., Tredicucci A., Beltram F.) 2. Scuola Normale Super Pisa, NEST, I-56127 Pisa, Italy (Mahler L., Tredicucci A., Beltram F.) 3. ETH, Inst Quantum Elect, CH-8093 Zurich, Switzerland (Walther C., Faist J.) 4. Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England (Beere H.E., Ritchie D.A.) (literal)
Titolo
  • High-power surface emission from terahertz distributed feedback lasers with a dual-slit unit cell (literal)
Abstract
  • We present a surface emitting distributed feedback terahertz laser resonator based on a dual-slit configuration. With the spacing of the slits as a parameter, the surface losses of the lasers can be chosen over a large range, while keeping slits narrow for optimum current injection. Quantum cascade devices based on a double metal waveguide showed slope efficiencies up to 40 mW/A and peak powers of more than 20 mW. The efficient radiation out-coupling does not depend on boundary conditions, and therefore would allow the application to large-area devices, making this an ideal resonator for high-power surface emission. (C) 2010 American Institute of Physics. [doi:10.1063/1.3430522] (literal)
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