The initial development and applica

The initial development and application of infrared technology is infrared spectrometer. With the development and application of infrared detection material technology, infrared technology has been widely used in a series of fields such as environmental monitoring, molecular type and structure determination, oil exploration and analysis, geological mineral determination, quality detection, transportation, safety alarm, medical care, etc. Its method and principle are more and more mature, various kinds of infrared devices emerge in endlessly, and the accuracy of the instrument is also constantly improved. Although infrared detectors have been used as early as the 19th century, and have been used for military purposes during the first World War, it is only after the PbS detector was used during the second world war that the infrared detector technology has been widely valued and developed rapidly. New detector materials have been developed continuously. The response band of the detector soon covers three air windows: 1-3um, 3-5um and 8-12um. At the same time, the continuous improvement of detector material quality makes the performance of the detector constantly improved, which promotes the overall development of infrared technology.