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J.G. Staguhn (NASA / GSFC & SSAI), D.J. Benford (NASA / GSFC), K.D. Irwin (NIST-Boulder), S.H. Moseley (NASA / GSFC), F. Pajot (IAS), R.A. Shafer (NASA / GSFC), G.J. Stacey (Cornell)
We have produced a variety of Transition Edge Sensor (TES) bolometers using superconducting bilayers (MoAu and MoCu) with transitions between 300-500 mK. These have produced NEPs as low as 3\times 10-17 W Hz-1/2. SQUID based time division multiplexers allow efficient readout with little noise cost. The multiplexed TESes were used in their first astronomical application in a recent observation with the FIBRE (Fabry Perot Interferometer Research Experiment) at the Caltech Submillimeter Observatory. We present lab results of improved performance devices and discuss designs for applications in large arrays (8x32 and larger) in the upcoming SPIFI and SAFIRE instruments.
The author(s) of this abstract have provided an email address for comments about the abstract: staguhn@gsfc.nasa.gov