Series arrays of high Tc SQUIDs have been fabricated by pulsed-laser film deposition and ion-mill-patterning techniques. The arrays consisted of 50-66 step-edge or bricrystal junction YBa_2Cu_3O_7 dc SQUIDs in a linear structure with two flux focusers. Each SQUID had an inductance of 20-40 pH and a junction width of 4 #mu#m. The arrays showed a modulation amplitude of up to 150#mu#V. which corresponds to a gain of approx 10. These results demonstrate the feasibility of using a series array of SQUIDs in direct readout SQUID amplifier circuitry with a wide bandwidth.
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机译：高Tc SQUID的系列阵列已通过脉冲激光膜沉积和离子磨机图案化技术制成。阵列由具有两个磁通聚焦器的线性结构中的50-66阶跃边缘或单晶结YBa_2Cu_3O_7 dc SQUID组成。每个SQUID的电感为20-40 pH，结宽为4＃mu＃m。阵列显示出高达150＃mu＃V的调制幅度。其对应于大约10的增益。这些结果证明了在具有宽带宽的直接读出SQUID放大器电路中使用SQUID的串行阵列的可行性。
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