INFRARED RADIATION DETECTOR LINEAR ARRAYS OF HIGH T-C SUPERCONDUCTINGTHIN-FILMS

An 8-element infrared radiation detector array of YBCO superconducting thin films has been manufactured. The films were deposited by excimer laser scanning ablation and were patterned by ion beam milling. The p hotoresponse of the detector array employing the critical current-temp erature relation were investigated in the range of 8-14 mu m. The arra y has an uniform photoresponse and a flat photoresponse-operating temp erature curve when it operates below T-c. The average normalized detec tivity (<(D)over bar>) of the array is 2.46 x 10(9) cm Hz(1/2) W-1 an d the average noise equivalent power ((NEP) over bar) is 1.822 x 10(-1 2) W Hz(-1/2).