Our research activities focuses on the miniaturization of atomic devices, such as atomic clocks and optically pumped magnetometers. To achieve this, we combine silicon and glass microfabrication techniques with expertise in filling alkali vapors and/or various buffer gases to produce microfabricated alkali vapor cells. Like their traditionally glass-blown counterparts, these cells enable the confinement and interrogation of atoms. Several developments aim to ensure stable and pure internal atmospheres, despite being manufactured at the wafer level.
In parallel, we are developing optical components to be integrated into the cells, as well as novel architectures to further enhance both the miniaturization and performance of our atomic devices.
Examples of atomic devices and optical metasurfaces developped in the group
DOCT-VCSEL
DOCT-VCSEL aims at demonstrating and implementing a new generation of MEMS-VCSEL swept-sources emitting at 850 nm and their integration in a highly miniaturized OCT system for skin pathologies detection.
Cutaneous cancer is currently the most commonly diagnosed type of cancers and its early diagnosis increases the chances of successful treatment...
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PULSACION
Chip-scale atomic clocks (CSACs) provide unprecedented frequency stability within volumes down to a few cubic centimeters and power consumptions as low as 100 mW. In this framework, the ANR project PULSACION aims at providing novel solutions in order to improve the long-term frequency stability of miniature atomic clocks based on coherent population trapping (CPT)...
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