The SCD-B line of CalSensors single-channel detectors from Opto Diode features anti-reflective-coated silicon windows. The IR detectors provide enhanced sensitivity across the mid-IR spectrum from 1.2 µm to 5.5 µm. The devices are optimized to provide the high performance of lead salt detectors while reducing harmful radiation. The detectors limit the signal on the active element to the 1.2 µm to 5.5 µm operational bandwidth of the detectors, thereby reducing the potentially harmful impact of out-of-band radiation. The SCD-13B and SCD-15B detectors combine the traditionally high responsivity of Cal Sensors’ chips with an anti-reflective-coated silicon window. They are suitable for environmental gas analysis or process control applications.