Thermal conductance measurements for the development of ultra low-noise transition-edge sensors with a new method for measuring the noise equivalent power

Karwan Rostem; Dorota M. Glowacka; David J. Goldie; Stafford Withington

doi:10.1117/12.787372

18 July 2008 Thermal conductance measurements for the development of ultra low-noise transition-edge sensors with a new method for measuring the noise equivalent power

Karwan Rostem, Dorota M. Glowacka, David J. Goldie, Stafford Withington

Author Affiliations +

Proceedings Volume 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV; 70200L (2008) https://doi.org/10.1117/12.787372
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

Transition-Edge Sensors (TESs) are sensitive devices used in astronomical detectors. Recent projects in ground-based and space astronomy demand the Noise Equivalent Power (NEP) of the TES to be reduced to the limits needed for accurate measurements, for example, of the B-mode polarisation of the CMB. Thus, we have measured thermal conductance of Si_xN_y bridges of various geometries, and present the results that give insight into the phonon transport mechanism inside these low-dimensional structures. We also present a new method for measuring the NEP of TESs using an on-chip black body radiator.

Citation Download Citation

Karwan Rostem, Dorota M. Glowacka, David J. Goldie, and Stafford Withington "Thermal conductance measurements for the development of ultra low-noise transition-edge sensors with a new method for measuring the noise equivalent power", Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 70200L (18 July 2008); https://doi.org/10.1117/12.787372

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