美国的庞兹公司制成了在8～12微米的红外波段灵敏度高、响应时间快达5毫微秒的红外探测器。这种探测器由 Pb、Sn、Te 三元化合物的单晶组成,因为利用了光电电动势,所以它有如下特征:不需要偏压电流,噪声水平低。50毫微秒的响应速度,较之过去的 In- The United States of America Pounds company made in the infrared band of 8 to 12 microns high sensitivity, fast response time of 5 ns infrared detector. The detector consists of a single crystal of Pb, Sn, Te ternary compounds that utilizes the photoelectromotive force and therefore has the following characteristics: no bias current and low noise level. 50 ns response speed, compared to the past In-