Détecteurs pour le domaine millimétrique et sub-millimétrique

Context evolution

– CNES prospective 2014 : first priority :
Detection of B-modes of the Cosmic Microwave Background (CMB) polarization
(to constrain inflation models of the early Universe evolution, prior to recombination)

– ESA cosmic vision 2015-2025 program
M5 call end 2015 : SPICA (sub mm) retenu en phase A. En savoir plus

FOCUS progresses

Detector development along two axes :
– High impedance bolometers
– Kinetic Inductance Detector (KIDs)*
(Choice was made not to develop Transistor Edge Sensors, well developed in US)

*superconducting devices using photon-assisted pair breaking to detect radiation

SI-Grid bolometers : a new start thanks to FOCUS

Assets : all silicon technology,
benefits from LETI silicon platform (semi-industrial),
HERSCHEL-PACS heritage, www.herschel.fr

A novel conception

Derived on bolometers developed for commercial use
> cost effective

Enhanced capability on the pixel two polarisations simultaneously measured,   multi colors (Patented)

– New key technological processes successfully tested on test vehicles produced at Leti
– New technological processes in synergies with R&D for large production industrial projects at CEA-Leti

> guarantee the continuity of the technology