Measurement of the non-linearity and interpixel capacitance of a near-IR detector

A temporal analysis of the noise of a H2RG detector is performed in view of the calibration of a dedicated setup. The implication on the noise performance of the subtraction of the reference output is described, and we extend the correlation method to groups of several pixels to derive the ratio x of the interpixel capacitance to the pixel capacitance of a detector. We find x = - 0.0259 ± 0.0017 ( stat ) ± 0.0020 ( syst . ) . All measurements are consistent to a sub-percent accuracy and provide a calibration of our setup.