Infrared Detector Three Band High-Pass Filter Design

Infrared detectors in space detection and target detection and tracking technology has a very important application,Its performance is directly related to the acquisition of data accuracy and credibility. In order to improve the sensitivity of infrared signal analysis, t,o reduce the detector noise level, Using electron beam and ion beam assisted deposition technology, Studies on the preparation of the3～5μmHigh pass rate,1.064～2.5μm band cutoff high pass filter at (CVD) ZnS Substrate. In order to effectively prevent the band of the laser detector for laser injury caused by1.064μm and ensure the normal work of the detector, According to the laser output power were prepared on Laser band of1.064μm have1%、0.1%、0.01%volume attenuation capability of the high-pass filter film series, Made the infrared detector is more flexible and intelligent.