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State University (France), Browse similar opportunities
SL-DRT-21-0313
Photonics, Imaging and displays
Uncooled thermal detectors absorb the infrared flux in wavelength range from 7µm to 14µm. This corresponds to an atmospheric transmission window and to the maximum emission of a blackbody at 300K, which enables to measure temperature variations of less than 100mK. The operating principle of microbolometers is based on the temperature measurement of a suspended membrane absorbing the infrared flux. The thermal transducer is the sensitive element of the microbolomètre, which determines its signal-to-noise ratio and therefore the performance of the bolometric pixel. Most commercial microbolometers use a thermistor with amorphous silicon or vanadium oxide for its high temperature coefficient (TCR = 2-4% / K) and low flicker noise (1/f noise).The thesis proposal deals with a breakthrough technology for microbolometers. Unlike conventional thermistor detectors, the student will examine the use of SOI vertical diodes as transductor. The topic will focus on characterizing and modeling the performance of such a device.
Département d’Optronique (LETI)
Laboratoire d’Imagerie thermique et THz
Grenoble
LEDUC Patrick
CEA
DRT/DOPT/LI2T
CEA Grenoble17 rue des Martyrs38054 Grenoble
Phone number: 0438782955
Email: patrick.leduc@cea.fr
Grenoble INP
Ecole Doctorale de Physique de Grenoble
Start date on 01-09-2021
BALESTRA Francis
CNRS
IMEP-LAHC (UMR 5130)
Grenoble INP-Minatec,3 Parvis Louis Néel, BP 257, 38016 Grenoble
Phone number: 0456529510
Email: balestra@minatec.grenoble-inp.fr
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