High performance silicon hot electron bolometers

Computer Science – Performance

Scientific paper

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Semiconductor-Device Characterization, Design, And Modeling

Scientific paper

High performance Si bolometers can be made using the electron-phonon conductance in the heavily doped Si to provide thermal isolation from the cryogenic bath. Thermal conductance, response time, noise, and signal frequency resistance are predicted based on laboratory measurements of larger samples. The predictions show that such detectors can be built with thermal conductances suitable for a wide range of applications, ranging from the low backgrounds of cryogenic space telescopes to ground based imaging and spectroscopy. Their noise performance is expected to be near thermodynamic limits, allowing background limited performance for many far infrared and submillimeter photometric and spectroscopic applications. .

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