Abstract
The characteristics of voltage biased HTc bolometers have been analysed by numerically solving the heat continuity equation of the system for ohmic and non-ohmic behaviour. The solutions show that the time constant and the linearity range of response depend strongly on biasing condition. For a bolometer in ohmic regime and operating in strong electrothermal feedback, the time constant can be reduced of more of one order of magnitude and linearity range increased of about 100 times with respect to the same device biased at low bias voltage. More limited improvements are obtained if the bolometer is in non-ohmic regime.
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