Metal-metal terahertz quantum cascade laser with micro-transverse- electromagnetic-horn antenna

Applied Physics Letters

Volumn 93, Issue 18, 2008, Pages

  Maineult, Wilfried ^a   Gellie, Pierre ^a   Andronico, Alessio ^a   Filloux, Pascal ^a   Leo, Giuseppe ^a   Sirtori, Carlo ^a   Barbieri, Stefano ^a   Peytavit, Emilien ^b   Akalin, Tahsin ^b   Lampin, Jean Francois ^b   Beere, Harvey E ^c   Ritchie, David A ^c  

^a UNIVERSITÉ PARIS DESCARTES   (France)

^b INSTITUT D ELECTRONIQUE   (France)

^c UNIVERSITY OF CAMBRIDGE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ANTENNAS; LASERS; QUANTUM CASCADE LASERS;

FIELD RADIATIONS; LASER CAVITIES; LATERAL MODES; QUANTUM CASCADES; TERAHERTZ QUANTUM CASCADE LASERS;

METALS;

EID: 55849133034     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3013819     Document Type: Article

References (19)

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13. Reflectivity values were computed by injecting inside the waveguide a narrowband band pulse of power Pin, centered at 2.8 THz, and by calculating the total power Prf, reflected across a vertical plane placed just before the facet.
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16. We compute very similar reflectivities for first and second order lateral modes, both with and without antenna.
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18. In this case the top metal and ridge widths were equal.
19. We compute a reflectivity of 0.34 for the device with the antenna and of 0.51 for the device with only the ground plane. Therefore the transmittances are 0.66 and 0.49, respectively.