Opto Diode logo. Covering Deep UV to Mid-IR
Components to Custom Solutions, Covering Deep UV to Mid-IR
ISO 9001:2008
To determine system frequency and response time

Both PbS and PbSe detector time constants increase (i.e., response speeds decrease) with a decrease in temperature (see figure below). By customizing deposition parameters, detectors with faster (decreased) time constants, at a given operating temperature, can be produced. A number of readily available PbS chemistries, characterized by their time constants at +23°C, are shown in the Figure below (e.g., PbS with a time constant of less than 100 µsec at room temperature, is shown in the figure as PbS 100 µsec).

Detector Response Speed - To determine system frequency and response time.