Matériaux et Phénomènes Quantiques
Présentation
The laboratory « Matériaux et Phénomènes Quantiques » (Quantum Materials and Phenomena) is a joint research unit (UMR) of University Paris Diderot and CNRS. It involves about 120 people in total with a permanent staff of 51.
The laboratory specializes in the study of frontier quantum materials and in the development of novel quantum devices. These activities rely on a large spectrum of theoretical and experimental expertise in material physics, transport and optics, and technological platforms of clean-room fabrication, spectroscopy and high-resolution electronic microscopy.
The activities of the laboratory span:
- novel materials at the nanoscale: nanocrystals, functionalized nanotubes, multiferroics, 2D materials, etc.
- novel phases of matter: quantum fluids of light, ultrastrong coupling in cavity, unconventional superconductivity, strongly correlated systems, topological phases, etc.
- nano-optical systems: optomechanics, nonlinear nanophotonics, nanoplasmonics, etc.
- quantum engineering and quantum information: quantum optoelectronic devices, quantum photonic circuits, trapped ions, hybrid organic/inorganic devices, surface and interface engineering.
Current projects of the laboratory include the development of novel probes for the investigation of quantum materials, such as time-resolved Raman spectroscopy, optomechanical atomic force microscopy, and scanning tunneling microscopy under optical excitation. Reciprocally, frontier materials are being tested as building blocks to realize novel functionalities in optomechanical sensors, nonlinear and quantum photonics devices, or in cavity embedded transport experiments.
[hal-00284100] Integrated horn antenna for microstrip waveguide THz quantum cascade lasers
Date: 2 Jun 2008 - 12:14
Desc: A horn-antenna is integrated on a microstrip waveguide QCL emitting at 2.0 THz. This allows a better impedance match to free space, which improves substantially the directivity of the beam and the radiation outcoupling.
[hal-00284101] Far field beam patterns of terahertz quantum cascade lasers
Date: 2 Jun 2008 - 12:14
Desc: [...]
[hal-00474429] Terahertz plasmonic antennas for quantum cascade lasers
Date: 20 Apr 2010 - 10:44
Desc: Quantum Cascade Lasers (QCL) are probably the most promising sources for Terahertz wave generation. The key issue especially for double metal QCLs is the extraction and the beam shaping of the emitted power. We propose a solution with a TEM-Horn Antenna and we compare it to the most recently proposed solutions: plasmonic array, Silicon-lens etc. New Terahertz antenna designs will also be presented.
[hal-00360482] Directional beam pattern from a double metal quantum cascade laser with a TEM-horn antenna
Date: 11 Feb 2009 - 11:37
Desc: We present the operation and the far field radiation pattern of a 2.9 THz double metal quantum cascade laser (QCL) with a micro TEM-horn antenna. An improvement of both the radiation pattern and the collected power level (typically a factor of 2 with f/1 optics) are observed in comparison with the QCL without antenna.
[sfo-00367507] Coupe transverse d'un faisceau Gaussien: définition du waist.
Date: 30 Apr 2009 - 17:59
Desc: Coupe transverse d'un faisceau Gaussien: définition du waist (noté w).
Autres contacts
Université Paris Diderot - Paris 7
U.F.R. Physique
Bâtiment Condorcet
10, rue Alice Domon et Léonie Duquet
75205 PARIS CEDEX 13