高温超导红外测辐射热计  

HIGH Tc SUPERCONDUCTING IR BOLOMETER

作　　者：马晖[1] 李丹[1] 皮德富[1] 李国桢[2] 曾群德[2] 黄江萍[2] 

机构地区：[1]南京理工大学,南京210094 [2]昆明物理研究所,昆明650223

出　　处：《红外与激光工程》1997年第3期35-39,共5页Infrared and Laser Engineering

摘　　要：根据超导测辐射热计的理论，以YBCO为材料，制备的高温超导薄膜型红外测辐射热计，黑体响应度Rv＞104V／W，D*＞1010cmHz1／2W－1，NEP≈10－14WHz-1／2。测量和分析了器件的频率响应、噪声特性和其对1～15μm波段及118．8μm，337μm，570．5μm，699μm，1009．4μm等波长的光谱响应。测量结果表明，高温超导红外测辐射热计对整个红外波谱都有响应，但其性能在远红外波段衰减很厉害，因此，对器件的表面处理应是提高其长波性能的一个关键。On the basic theory of bolometer, with the characteristics of superconducting material which its small variation in range of superconducting changing temperature causes a sharp increasing of resistance C-orientation YBCO superconducting thin film is prepared by means of direct current RF sputtering. With the YBCO film, high Tc superconducting IR bolometer (HTSC IR bolometer ) is fabricated. Its property parameters are as follows: Rv > 104 V / W, D * > 1010cmHz1/2 W-1, NEP≈10 -14WHz-1/2. Frequency response, noise property and relative spectral response to 1 ~15μm, 118. 8μm, 337μm, 570. 5μm, 699μm and 1009. 4μm are tested and analyzed.The results show that high Tc superconducting will be a high sensitivity detector in the whole range of infrared spectrum as long as the surface processing technology of sensitive elements is improved.

关 键 词：高温超导 红外测辐射热计 超导材料 

分 类 号：TN214[电子电信—物理电子学] TM26[一般工业技术—材料科学与工程]