Guiding a terahertz quantum cascade laser into a flexible silver-coated waveguide (Articolo in rivista)

Type
Label
  • Guiding a terahertz quantum cascade laser into a flexible silver-coated waveguide (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.3639300 (literal)
Alternative label
  • Vitiello, Miriam S.; Xu, Ji-Hua; Beltram, Fabio; Tredicucci, Alessandro; Mitrofanov, Oleg; Harrington, James A.; Beere, Harvey E.; Ritchie, David A. (2011)
    Guiding a terahertz quantum cascade laser into a flexible silver-coated waveguide
    in Journal of applied physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Vitiello, Miriam S.; Xu, Ji-Hua; Beltram, Fabio; Tredicucci, Alessandro; Mitrofanov, Oleg; Harrington, James A.; Beere, Harvey E.; Ritchie, David A. (literal)
Pagina inizio
  • 063112 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 110 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR Ist Nazl Fis Applicata Nello Carrara, I-50019 Sesto Fiorentino, Italy NEST Ist Nanosci CNR, I-56127 Pisa, Italy Scuola Normale Super Pisa, I-56127 Pisa, Italy UCL, Dept Elect & Elect Engn, London WC1E 7JE, England Rutgers State Univ, Dept Mat Sci & Engn, Piscataway, NJ 08854 USA Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England (literal)
Titolo
  • Guiding a terahertz quantum cascade laser into a flexible silver-coated waveguide (literal)
Abstract
  • We report on a promising experimental approach to efficiently couple quantum cascade laser (QCL) sources fabricated in either surface emitting micro-ring resonator or standard edge emitting geometry with terahertz (THz) hollow waveguides. We show that the THz beam of a QCL can be guided into flexible silver-coated polycarbonate waveguides having length in the range 4-12 cm with coupling efficiencies > 80%. The dominant optical modes propagating through the waveguides can be selected by varying the polarization of the incoming QCL beam, the coupling geometries, and/or bending the hollow waveguide. Either the lowest loss TE(11) or the TE(01) mode can be selected and guided through the waveguide with propagation losses in the range 2.1-4.4 dB/m and bending losses lower than 1.2 dB. (literal)
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