TITLE

Buried waveguides in terahertz quantum cascade lasers based on two-dimensional surface plasmon modes

AUTHOR(S)
Alton, J.; Dhillon, S. S.; Sirtori, C.; de Rossi, A.; Calligaro, M.; Barbieri, S.; Beere, H. E.; Linfield, E. H.; Ritchie, D. A.
PUB. DATE
February 2005
SOURCE
Applied Physics Letters;2/14/2005, Vol. 86 Issue 7, p071109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A scheme for buried waveguides in terahertz quantum cascade lasers is demonstrated by combining a surface plasmon mode with ion implantation. The mode is bound to a metal strip deposited on the surface of the device that confines the light in both vertical and lateral directions without any etching requirements. Ion implantation is used to confine the current that selectively pumps the active region. Electrical and optical measurements demonstrate this two-dimensional confinement. Further, by taking advantage of the lower losses and a reduced thermal resistance, laser action is achieved in continuous wave up to 77 K.
ACCESSION #
16581263

 

Related Articles

  • Coupling of energy from quantum emitters to the plasmonic mode of V groove waveguides: A numerical study. Vernon, K. C.; Tischler, N.; Kurth, M. L. // Journal of Applied Physics;Mar2012, Vol. 111 Issue 6, p064323 

    This work is a theoretical investigation into the coupling of a single excited quantum emitter to the plasmon mode of a V groove waveguide. The V groove waveguide consists of a triangular channel milled in gold and the emitter is modeled as a dipole emitter, and could represent a quantum dot,...

  • Plasmon polaritons are guided with zero bend loss.  // Laser Focus World;Jul2005, Vol. 41 Issue 7, p13 

    Reports on the perfect transmission of channel-plasmon polaritons in a subwavelength waveguide, demonstrated by researchers at the Queensland University of Technology in Brisbane, Queensland. Improvement of the process which has been previously demonstrated only for photonic-crystal waveguides;...

  • Surface-plasmon distributed-feedback quantum cascade lasers operating pulsed, room temperature. Bousseksou, A.; Chassagneux, Y.; Coudevylle, J. R.; Colombelli, R.; Sirtori, C.; Patriarche, G.; Beaudoin, G.; Sagnes, I. // Applied Physics Letters;8/31/2009, Vol. 95 Issue 9, p091105 

    We report distributed-feedback surface-plasmon quantum cascade lasers operating at λ≈7.6 μm. The distributed feedback is obtained by the sole patterning of the top metal contact on a surface plasmon waveguide. Single mode operation with more than 30 dB side mode suppression ratio is...

  • High performance of 1.55 µm DFB integrated with vertically tapered self-aligned spot-size converter. W . Qiu; J . Dong; W. Wang; F . Zhou; J . Zhang; L . WANG // Optical & Quantum Electronics;Jun2003, Vol. 35 Issue 8, p765 

    A new type of self-aligned spotsize converter (SSC) integrated 1.55 μm DFB lasers had been proposed in this article. The upper optical confinement layer and the butt-coupled tapered thickness waveguide were regrown simultaneously, which not only offered the separate optimization of the active...

  • Distributed feedback regime of photonic crystal waveguide lasers at 1.5 μm. Checoury, X.; Boucaud, P.; Lourtioz, J-M.; Pommereau, F.; Cuisin, C.; Derouin, E.; Drisse, O.; Legouezigou, L.; Lelarge, F.; Poingt, F.; Duan, G. H.; Mulin, D.; Bonnefont, S.; Gauthier-Lafaye, O.; Valentin, J.; Lozes, F.; Talneau, A. // Applied Physics Letters;12/6/2004, Vol. 85 Issue 23, p5502 

    Lasing of W3 and W2/3 triangular lattice photonic crystal waveguides on InP substrate is investigated around 1.5 μm by optical pumping. The lattice period of the fabricated structures is varied from 320 to 540 nm by steps of 20 nm, thereby leading to a detailed exploration of the lasing...

  • Effect of carrier loss through waveguide layer recombination on the internal quantum efficiency in large-optical-cavity laser diodes. Ryvkin, B. S.; Avrutin, E. A. // Journal of Applied Physics;6/1/2005, Vol. 97 Issue 11, p113106 

    An analytical treatment for carrier distribution in optical confinement layers (OCLs) of semiconductor lasers with bimolecular recombination is developed. On the basis of this approach, the effect of OCL recombination on the internal quantum efficiency of a laser is evaluated. It is shown that...

  • Low-threshold terahertz quantum-cascade lasers. Rochat, Michel; Ajili, Lassaad; Willenberg, Harald; Faist, Je´ro⁁me; Beere, Harvey; Davies, Giles; Linfield, Edmund; Ritchie, David // Applied Physics Letters;8/19/2002, Vol. 81 Issue 8, p1381 

    A quantum-cascade laser operating at λ = 66 µm is demonstrated. It consists of a three-quantum-well chirped-superlattice active region embedded in a waveguide based on a single interface plasmon and a buried contact. A threshold current density of 210 A/cm² at T = 12 K, a maximum peak...

  • Time-resolved thermal characterization of semiconductor lasers. Lanco, L.; Ducci, S.; Likforman, J.-P.; Filloux, P.; Marcadet, X.; Calligaro, M.; Leo, G.; Berger, V. // Applied Physics Letters;1/8/2007, Vol. 90 Issue 2, p021105 

    The authors propose and demonstrate a simple nondestructive technique that allows characterizing precisely the thermal properties of semiconductor lasers. The method consists of performing transmission measurements with a probe beam end fire coupled into one of the waveguide facets. Fabry-Perot...

  • Subhead Offset Grid Miniature Waveguides Aid Multifrequency Arrays.  // Microwaves & RF;Apr2005, Vol. 44 Issue 4, p58 

    Focuses on a research which investigated the use of miniaturized open-ended partially-dielectric-loaded hard-walled rectangular waveguides. Different rectangular waveguide configurations; Bandwidths achieved by the researchers.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics