Compact two-dimensional array of stressed Ge : Ga detectors

We have developed a 4 x 8 array of stressed Ge:Ga detectors. This array det ector has a high density format of entrance pupils so that we can minimize the size of the camera optics. The cutoff wavelength of the detector is abo ut 170 mu m, and the detector's NEP is better than 10(16) W Hz(-1/2). We ar e going apply this array detector to balloon-borne astronomical observation s. Furthermore, we are developing this detector into a 5 x 15 array detecto r that will be placed onboard the IRIS satellite to be launched in 2003.