摘要
提出了一种内调制红外探测器组件．它可将恒定入射的红外辐射信号转变为交变的电信号输出，而没有通常红外探测系统的调制盘等机械装置，可以简化探测系统，提高可靠性，有利于后级进行交流放大．初步测试表明，在约５μＷ红外辐射功率下，用ＭＣＴ做探测单元的内调制红外探测器组件可输出峰值电压约６５ｍＶ的交流电信号，其比探测率略高于为５×１０９ｃｍ·Ｗ(-１)ｓ(-１／２)。
Intramodulated infrared detector has been developed. It can output an alternatedphotocurrent without any external chopper even the incident infrared radiation is a constant level.Therefore, it will simplify the measurement and detection condition, enhance the reliability and bepropitious to AC amplifier. The measurement shows that alternated out-signal achieved 65mV(peakto peak) while the incident infrared radiation is about 5 uW and D of the device is larger than5 × 10 9 cm·W-1's-1/2.
出处
《红外技术》
CSCD
北大核心
1999年第6期20-23,共4页
Infrared Technology
基金
国家自然科学基金
国家九五重点科技攻关资助
