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pro vyhledávání: '"Vincent Berger"'
Autor:
Vincent Berger
Publikováno v:
Soins Cadres. 30:30-33
Autor:
Vincent Berger, Laetitia Doyennette, Alexandre Delga, Alexandru Nedelcu, Virginie Trinité, Mathieu Carras
Publikováno v:
Infrared Physics & Technology. 59:100-107
In this paper, we present an idealised model of quantum cascade detectors that calculates the highest performances reachable with actual technology. It is based on an ideal vision of the electronic behavior of the transport and a Fabry–Perot approa
Autor:
Emmanuel Rosencher, Alexandru Nedelcu, Isabelle Ribet-Mohamed, Vincent Berger, Emmanuel Lhuillier
Publikováno v:
Infrared Physics & Technology. 52:247-251
Quantum well infrared photodetectors (QWIP) are good candidates for low photon flux detection in the 12–20 μm range. For particularly low incident power applications, it can be interesting to reduce the operating temperature to reach the ultimate
Publikováno v:
International Journal of Modern Physics B. 23:2861-2866
Magneto-transport measurements have been performed on two quantum cascade structures, a laser and a detector. These experiments lead to determine the different scattering processes involved in these devices. In the lasers we find both an interface ro
Publikováno v:
Journal of Modern Optics. 56:232-239
We report on an integrated source of twin photons at telecom wavelength operating at room temperature, in which a pump beam impinging on top of an AlGaAs waveguide generates two counterpropagating, orthogonally polarized guided modes by parametric fl
Publikováno v:
Comptes Rendus Physique. 8:1184-1197
We report on semiconductor waveguides for room-temperature parametric fluorescence in the near infrared. Two phase-matching schemes are presented: form birefringence and counter-propagating phase matching. The characteristics and performances of thes
Autor:
Vincent Berger, Boštjan M. Zupančič
Publikováno v:
International Journal of Refugee Law. 19:145-160
Autor:
Xavier Marcadet, Charles Renard, Borge Vinter, Mathieu Carras, Vincent Berger, J.L. Reverchon
Publikováno v:
Semiconductor Science and Technology. 21:1720-1723
Generation?recombination processes in a narrow band gap active region of infrared photodiodes are studied theoretically and experimentally. Thanks to an analysis of the transport in InAsSb photodiodes as a function of temperature, we demonstrate that
Publikováno v:
Infrared Physics & Technology. 47:175-181
A photovoltaic intersubband detector based on electron transfer on a cascade of quantum levels is presented which we called a Quantum Cascade Detector (QCD). The highest photoresponse of intersubband transition based photovoltaic detectors is demonst
Publikováno v:
Optics & Laser Technology. 36:669-676
AlGaAs-based quantum well laser structures with third-order waveguide mode emission at 775 nm are a promising route toward compact twin-photon sources at 1.55 μm based on the principle of modal phase matching between the pumping frequency and fundam