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Nanostructuration of GaAs surfaces : oxidation and nitridation
This thesis focuses on two aspect of GaAs surface treatment using plasma in order to deposit controlled oxide and nitride layers. In both cases, various means of... -
Development of a new generation of micro-structured semi-conductor detectors ...
In X-ray medical imaging, semi-conductors tend to replace scintillator crystals (most of the commercial devices), thank to their higher spatial resolution and energy... -
A quantum dot in a photonic wire : spectroscopy and optomechanics
In the framework of this thesis, single InAs/GaAs quantum dot devices were studied by optical means. Starting with a general description of self-assembled InAs QDs,... -
Development of ultra-low noise HEMTs for cryoelectronics at <= 4.2 k
We report on DC and noise characteristics at 4.2 K of High Electron Mobility Transistors (HEMTs) which have been realized at LPN/CNRS. This work is aimed to develop... -
Growth of Vertical GaAs Nanowires on an Amorphous Substrate via a Fiber-Textu...
International audience -
Catalyst-assisted hydride vapor phase epitaxy of GaN nanowires: exceptional l...
International audience -
A 2.5Gb/s ATM label translator implementation using high speed GaAs technology
International audience -
Improvement of the oxidation interface in an AlGaAs/AlxOy waveguide structure...
The wet oxidation from the mesa sidewalls of AlGaAs/GaAs epitaxial structures is investigated in details. In addition to the intended lateral oxidation of the Al-rich... -
Evaluation of non-hermetic packaging solutions for active microwave devices a...
Microwave devices for satellite applications are encapsulated in hermetic packages as metal or ceramic housings. The strong improvement of organic materials,... -
On-chip nano-optomechanical whispering gallery resonators
This thesis work focuses on the design, fabrication and measurement of Gallium Arsenide (GaAs) nano-optomechanical disk resonators. These disks are both GHz frequency... -
III-V heterostructures growth on SrTiO3/Silicon templates
Due to their electrical and optical properties, the integration of III-V semiconductors on Si would open the path to the combination of a various functionalities on... -
A switchable CPW-fed slot antenna for multifrequency operation
International audience
