Fig. 6

Noise power spectral density and specific detectivity. a S I as function of modulation frequency in 1GQ-OQO phototransistor. A, B, and C denote three different measurement regimes, corresponding to V G values of −18, −15, and 12 V, respectively, (see also, Supplementary Fig. 13a). b Estimation of D* for three regimes of operation vs. modulation frequency