a detector has a sensitivity of 10^6 V/W and a NEP* = 10^-10 W/Hz^1/2. Light of 1E-6 W power is measured with the detector.
a) what is the signal?
b) what is the detector noise when the detector is read out with a frequency f = 100Hz?
c) what would be the integration time t=1/f required for a measurement that gives a signal/noise ratio of 10^6?