The multiplexed 256-element PbS array from Cal Sensors has meanwhile been made available. The sensitive range covers 1 – 3 µm. The unit is equipped with a Peltier cooler and uses the same 28-pin housing as the known InGaAs or extended InGaAs arrays. The same 50-µm pixel grid is also being used. The active elements are each 40 µm wide and 450 µm high.
Integration time ranges from 0.01 to 100 milliseconds, the dynamic range of a single scan is 4000:1. An individual dark current subtraction is integrated. Drive electronics will be available shortly. With this new detector Cal Sensors is offering customers a powerful and attractively priced array for NIR spectroscopy.
