Metal-metal terahertz quantum cascade laser with micro-transverse-electromagnetic-horn antenna
| Autor: | David A. Ritchie, W. Maineult, Giuseppe Leo, Emilien Peytavit, Tahsin Akalin, Harvey E. Beere, Jean-Francois Lampin, Stefano Barbieri, Alessio Andronico, Pascal Filloux, Carlo Sirtori, P. Gellie |
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| Přispěvatelé: | Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Laboratoire Matériaux et Phénomènes Quantiques (MPQ (UMR_7162)), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Cavendish Laboratory, University of Cambridge [UK] (CAM) |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Physics
Distributed feedback laser Physics and Astronomy (miscellaneous) business.industry Far-infrared laser Physics::Optics 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences law.invention Radiation pattern 010309 optics Photomixing [SPI]Engineering Sciences [physics] Optics Horn antenna law 0103 physical sciences Optoelectronics Antenna (radio) 0210 nano-technology business Quantum cascade laser |
| Zdroj: | Applied Physics Letters Applied Physics Letters, American Institute of Physics, 2008, 93, pp.183508-1-3. ⟨10.1063/1.3013819⟩ Applied Physics Letters, 2008, 93, pp.183508-1-3. ⟨10.1063/1.3013819⟩ |
| ISSN: | 0003-6951 |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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