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A Parallel/Series Array of Cold-Electron Bolometers with SIN Tunnel Junctions for Cosmology Experiments

Leonid Kuzmin (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik)
IEEE/CSC & EUROPEAN SUPERCONDUCTIVITY NEWS FORUM 3, p. 1-9. (2008)
[Artikel, refereegranskad vetenskaplig]

A novel concept of the parallel/series array of Cold-Electron Bolometers (CEB) with Superconductor-Insulator-Normal (SIN) Tunnel Junctions has been proposed for matching with JFET readout. The current-biased CEBs are connected in series for DC and in parallel for HF signal. A signal is concentrated to the absorber through the capacitance of tunnel junctions and additional capacitance for coupling of superconducting islands. Due to dividing power between CEBs in the array and increasing responsivity, the noise matching could be effectively optimized and the photon Noise Equivalent Power could be easily achieved at 300 mK with a room temperature JFET readout.

Nyckelord: Cold-Electron Bolometers, SIN Tunnel Junctions, Parallel/Series Array



Denna post skapades 2009-01-19.
CPL Pubid: 88552

 

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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik

Ämnesområden

Fysik

Chalmers infrastruktur