Optimised high-frequency performance of Auger-suppressed magnetoconcentration photoconductors
In this work we analyse the Auger-suppressed non-equilibrium HgCdTe magnetoconcentration photoconductors in order to optimise their specific detectivity-bandwidth product (D?f?). We solved numerically the set of general equations for semiconductor in crossed electric and magnetic fields for the case of large non-equilibrium. Larger quenching of the carrier concentration within the active area suppresses the generationrecombination noise and simultaneously shortens the response time. At the same time higher fields intensify carrier heating. There is an optimum balance between the field intensities and the beneficial effects of Auger suppression and for this the maximum D?f? product is obtained.
magnetoconcentration response time auger suppression non-equilibrium photodetectors exclusion electromagnetically carrier-depleted detector