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Article: Studies conducted at M. Tarasov et al on physics recently published.
- Article from:
- Physics Week
- Article date:
- September 29, 2009
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"To improve electron cooling, expand the dynamic range, and match the input and output impedances, series/parallel arrays of cold-electron bolometers have been developed, manufactured, and measured at temperatures from 50 to 350 mK," investigators in Russia report.
"The bolometers are integrated into cross-slot antennas to analyze the polarization of cosmic microwave background radiation at a frequency of 345 GHz. The maximum temperature response is 6.5 mu V/mK," wrote M. Tarasov and colleagues.
The researchers concluded: "The noise-equivalent electric power at a temperature of 300 mK is 1.2 x 10(-17) W/Hz(1/2)."
Tarasov and colleagues ...