Basic Studies on Control of the Terahertz Waves-Magnetic Flux Quanta-Electron Pairs Interactions in Superconducting Super-lattices and for Applications of them to Devices

为实现上述研究，制备了由无铅和掺杂Bi_2Sr_2CaCu_2O_y高T_c超导体的本征约瑟夫森结组成的小型化单晶器件。对它们在磁场和微波辐照下的基本性质进行了实验研究和计算机模拟。在此基础上，在衬底上构造了一对由本征约瑟夫森结组成的振荡器和探测器，并利用约瑟夫森涡流成功地实现了0.7THz电磁波的振荡和探测。

The miniaturized single-crystal devices composed of intrinsic Josephson junctions of lead-free and -substituted Bi_2Sr_2CaCu_2O_y high-T_c superconductors were fabricated for the above mentioned studies. The basic properties of them under magnetic field and microwave irradiation were studied experimentally and also by computer simulations. On the basis of the results, a couple of oscillator and detector composed of intrinsic Josephson junctions were constructed on a substrate, and the oscillation and detection of 0.7THz electromagnetic waves were successfully done by them using the Josephson vortex flow.