'Ulis is thrilled with the outstanding results we have achieved in improving the response time and sensitivity of the bolometer
' said Sebastien Tinnes, marketing team leader at Ulis.
Zhang et al., "Highly sensitive hot electron bolometer
based on disordered graphene," Scientific Reports, vol.
can be fabricated up to ten times smaller than the desired radiation wavelength to increase its sensitivity and to reduce its time constant.
Sensitivity in modern devices can be limited by self-generated thermal noise, so many bolometers
are cryogenically cooled.
Washington, September 26 (ANI): A team of scientists has developed a "scintillating bolometer
", a device that they will use in efforts to detect the dark matter of the Universe.
are the new kid on the block in space," providing both high sensitivity and spatial resolution for recording small temperature variations in the microwave sky, says Planck scientist Francois Bouchet of the Institute of Astrophysics in Paris.
can gauge temperature differences in the sky as small as a ten-millionth of a degree, allowing us to shed light on places where up until now only darkness has reigned.
Modern infrared technology finally came of age in 1961 with the development of the germanium bolometer
, a thin strip of germanium enclosed in a container with a lenslike aperture.
Another prominent dark matter experiment is the EDELWEISS facility in France  which uses high purity germanium cryogenic bolometers
at milli-Kelvin temperatures.
Grossman, "Antenna-coupled niobium bolometers
for mm-wave imaging arrays" in Terahertz and Gigahertz Photonics, Proceedings of SPIE, pp.
The detectors are bolometers
, or "heat meters." Imagine your hand as a bolometer
Thus, the HFI bolometers
, though operating in absolute mode, can receive thermal photons from the spacecraft itself much of which is in a 50 K environment.