Abstract
We are developing an ideal integrating bolometer (IIB), a novel detector for far-infrared applications. An IIB consists of a dissipationless temperature sensor weakly coupled to a thermal bath through a heat switch. If the heat switch’s thermal conductance in the “off” state is much smaller than its conductance in the “on” state, the thermometer temperature will depend linearly on integrated incident power, until the bolometer temperature is reset by changing the conductance to the “on” state. A key component of an IIB is the heat switch, the subject of this paper. We have fabricated and tested prototype IIB devices designed to demonstrate a superconducting magnetic heat switch on both solid substrates and membranes. In this work, we will present details on the design, fabrication, and experimental performance of our prototype IIB devices.
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This work was funded through the NASA/GSFC IRAD Program in FY2014 and FY2015.
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Nagler, P.C., Canavan, E., De Alba, R. et al. Development of Superconducting Magnetic Heat Switches for an Ideal Integrating Bolometer. J Low Temp Phys 184, 280–285 (2016). https://doi.org/10.1007/s10909-015-1365-z
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DOI: https://doi.org/10.1007/s10909-015-1365-z