Terahertz quantum cascade lasers based on two-dimensional photonic crystal resonators

Terahertz quantum cascade lasers based on two-dimensional photonic crystal resonators

We demonstrate high spectral control from surface emitting THz Quantum Cascade Lasers based on a two-dimensional photonic crystal cavity. The perforated top metallic contact acts as an in plane resonator in a tight double-metal plasmonic waveguide providing a strong optical feedback without needing...

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Veröffentlicht in:Optics express 2008-04, Vol.16 (8), p.5206-5217
Hauptverfasser: Sirigu, Lorenzo, Terazzi, Romain, Amanti, Maria I, Giovannini, Marcella, Faist, Jèrome, Dunbar, L Andrea, Houdré, Romuald
Format: Artikel
Sprache:eng
Schlagworte:
Crystallization - methods
Equipment Design
Equipment Failure Analysis
Infrared Rays
Lasers, Semiconductor
Photons
Surface Plasmon Resonance - instrumentation
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container_end_page 5217
container_issue 8
container_start_page 5206
container_title Optics express
container_volume 16
creator Sirigu, Lorenzo
Terazzi, Romain
Amanti, Maria I
Giovannini, Marcella
Faist, Jèrome
Dunbar, L Andrea
Houdré, Romuald
description We demonstrate high spectral control from surface emitting THz Quantum Cascade Lasers based on a two-dimensional photonic crystal cavity. The perforated top metallic contact acts as an in plane resonator in a tight double-metal plasmonic waveguide providing a strong optical feedback without needing three-dimensional cavity features. The optical far-field patterns do not exhibit the expected symmetry and the shape of the cavity mode. The difference is attributed to a metal surface plasmon mediated light outcoupling mechanism also responsible for the relatively low extraction efficiency.
doi_str_mv 10.1364/OE.16.005206
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source MEDLINE; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals
subjects Crystallization - methods
Equipment Design
Equipment Failure Analysis
Infrared Rays
Lasers, Semiconductor
Photons
Surface Plasmon Resonance - instrumentation
title Terahertz quantum cascade lasers based on two-dimensional photonic crystal resonators
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