A DEMONSTRATION OF 1×8 LINEAR ARRAY YBCO TRANSITION EDGE IR BOLOMETER

A high-T_c superconducting array microbolometer has been fabricated by using a YBCO film. Optical measurements gave moderate performance as individual detector, but singnificant improverment appears possible.     

高温超导Bolometer研制

<正>Bolometer是一种宽带红外信号检测器,它被广泛用于检测低速远红外信号源.它的应用背景是器件吸收热辐射将产生温度变化,致使器件的电阻发生灵敏变化,从而达到检测信号的目的.理论计算表明,Bolometer的电压响应率R_v,可以由下式表示:     

A DEMONSTRATION OF 1×8 LINEAR ARRAY YBCO TRANSITION EDGE IR BOLOMETER

A high-T_c superconducting array microbolometer has been fabricated by using a YBCO film. Optical measurements gave moderate performance as individual detector, but singnificant improverment appears possible.     

1×8线阵高温超导远红外热型探测器研制

采用高质量的 YBCO 高温超导薄膜,研制成1×8线阵超导远红外热型探测器。测量了线阵中各单元器件的性能,结果表明:NEP 在10~(-11)WHz~(-1/2),D~*在10~8m·Hz~(1/2)·W~(-1)的范围内。     

原位直流磁控溅射制备YBa_2Cu_3O_(7-δ)超导薄膜

采用改装的直流磁控溅射设备,在适当的氧、氩气体中,对被溅射衬底加热进行YBCO材料的直流磁控溅射,溅射结束继续按温度程序控制曲线原位进行1个大气压下的氧气中退火,所得到的YBCO薄膜,其零电阻转变温度T_co一般在85～90K,临界电流密度J_c(77K)可以大于1×10~6A/Cm~2.