【摘要】 研制了具有约瑟夫逊效应的高TcGdBa2Cu3O7-δ薄膜双晶晶界结，按照光助隧道效应的原理我们用双晶结进行光探测，光源是波长为0．6328μm的He-Ne激光器，系统观测了高TcGdBa2Cu3O7-δ双晶结的光响应特性，最好的结果为：噪声等效功率NEF＝4．3×10－（14）WHz（－1／2），归一化探测率D＝1．2×10（10）cmHz（1／2）W－1，响应率Rv＝3．5×107V／W，响应时间τ≤4．12×10－7s。更多还原

【Abstract】 The high To Superconducting GdBa2Cu3O7-δ thin film bicrystal junction with Josephson weak link behaviour have been fabricated successfully. Acooding to the principle of photon-assisted tunneling, the light detection was performed with the bicrystal junction. The He-Ne laser with 0. 6328μm wave length was used as light source. The optimum results are as follows: NEP= 4. 3×10-14W, D= 1. 2 ×1010cmHz1/2 W-1, Rv=3. 5 ×107V/W, τ≤4. 12 ×10-7s.更多还原