Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Xavier Marcadet"'
Autor:
G. Marre, J.L. Reverchon, Vincent Berger, Borge Vinter, Xavier Marcadet, Charles Renard, M. Carras
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 20:519-522
The InAs 0 . 9 1 Sb 0 . 0 9 ternary compound grown on GaSb substrates is a promising alloy for light detection in the 3-5 μm window. Nevertheless, its development is still limited due to difficulties occurring during device processing. For example,
Publikováno v:
Journal of Crystal Growth. 251:723-728
We report high-quality mid-infrared electroluminescent devices based on a quantum cascade design using InAs/GaSb/AlSb heterostructures grown on GaSb substrates. The key growth issues for the antimonide/arsenide interfaces are described. The interface
Publikováno v:
Journal of Crystal Growth. :609-613
Some key growth issues for InAsSb mid-infrared detectors are presented. We investigate the influence of growth temperature and Sb/As flux ratio on InAsSb alloy composition and on carrier lifetime. The Sb mole fraction in InAs1−xSbx depends linearly
Publikováno v:
Applied Physics Letters. 79:3758-3760
Parametric fluorescence in low-loss oxidized aluminum gallium arsenide heterostructure waveguides is quantitatively analyzed. A parametric fluorescence efficiency as high as 6×10−7 W/W has been measured in a 3.2-mm-long waveguide. This corresponds
Autor:
Michel Calligaro, Gaetano Assanto, Olivier Durand, Giuseppe Leo, Vincent Berger, C. Caldarella, Gianlorenzo Masini, Xavier Marcadet, A. De Rossi
Publikováno v:
Applied Physics Letters. 77:3884-3886
Effective-index measurements in multilayer AlGaAs waveguides are used in conjunction with x-ray reflectometry to yield refractive indices and thicknesses of the constituent layers, with the accuracy required by parametric interactions in guided-wave
Autor:
V. Ortiz, M. Stellmacher, C. Becker, Xavier Marcadet, H. Page, G. Glastre, Julien Nagle, Carlo Sirtori
Publikováno v:
Applied Physics Letters. 77:463-465
The design and operation of quantum cascade (QC) lasers using AlAs/GaAs coupled quantum wells are reported. In this material system, the conduction band offset at the Γ point (∼1 eV) is much higher than in previously reported QC lasers. The use of
Autor:
Alexandru Nedelcu, Mathieu Carras, Xavier Marcadet, Vincent Berger, Amandine Buffaz, P. Planchette, Laetitia Doyennette
Publikováno v:
2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves.
Performances of Quantum Cascade Detectors in the long wave infrared range (near 15 microns) will be studied for the first time. Due to their extremely low dark currents, Quantum Cascade Detectors are a promising candidate for the applications of imag
Publikováno v:
SPIE Proceedings.
Since 2002, the THALES Group has been manufacturing sensitive arrays using QWIP technology based on GaAs and related III-V compounds, at the Alcatel-Thales-III-V Lab (formerly part of THALES Research and Technology Laboratory). In the past researcher
Autor:
J. A. Robo, David Gohier, Alain Manissadjian, Odile Huet, Lydie Dua, Philippe Bois, Alexandru Nedelcu, Nadia Brière de l’Isle, Xavier Marcadet, Eric Costard, Jean P. Truffer
Publikováno v:
SPIE Proceedings.
Since 2002, the THALES Group has been manufacturing sensitive arrays using QWIP technology based on GaAs and related III-V compounds, at THALES Research and Technology Laboratory. The QWIP technology allows the realization of large staring arrays for
Autor:
Xavier Marcadet, Lydie Dua, Philippe Bois, Alexandre Nedelcu, Eric Costard, Nadia Brèire de l'Isle, Jean P. Truffer, J. A. Robo, Odile Huet
Publikováno v:
SPIE Proceedings.
Standard GaAs/AlGaAs Quantum Well Infrared Photodetectors (QWIP) are considered as a technological choice for 3 rd generation thermal imagers [1], [2]. Since 2001, the THALES Group has been manufacturing sensitive arrays using AsGa based QWIP technol