Metal-metal terahertz quantum cascade laser with micro-transverse-electromagnetic-horn antenna
Wilfried Maineult, Pierre Gellie, Alessio Andronico, Pascal Filloux,1 Giuseppe Leo, Carlo Sirtori,1 Stefano Barbieri, Emilien Peytavit, Tahsin Akalin, Jean-Francois Lampin, Harvey E. Beere, David A. Ritchie
Applied Physics Letters
Volume: 93, Issue: 18, Nov 2008
183508-1 - 183508-3
A 2.8 THz metal-metal quantum cascade laser operating with a microtransverse- electromagnetic-horn antenna has been demonstrated. By comparing the far-field radiation pattern to a standard ridge cavity with a cleaved facet, a striking improvement of the directionality is observed. The effectiveness of the horn antenna is critically dependent on the control of the lateral modes in the laser cavity.
Back to References