Research on Fabrication of Superconducting Receiver for Submillimeter-Wave Measurement

亚毫米波测量超导接收机制作研究

• 批准号: 03555010
• 负责人: YOSHIDA Keiji
• 金额: $ 6.59万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03555010/
• 关键词: Submillimeter Wave; Superconducting Oscillator; Josephson Junction; ジョセフリン素子; 超伝導受信機

The propose of this research is to develop a new superconducting oscillator for measuring submillimeter waves. In this research we obtained the following results:1.Evaluation of the Performance of the Flux-Flow Oscillator (FFO)We succeeded in the observation of the oscillation characteristics in the frequency range between 100GHz and 1500GHz using NbN/Pb Josephson junctions and Nb/Al/Nb Josephson junctions. Using the former junction we showed that the currents of 1-3 mA can be induced in the striplines. Using the latter junction we succeeded in obtaining oscillation output at frequencies more than 1THz.2.Development of Impedance Matching Circuit with Inductive Coupling MethodWe showed by simulation that broad band matching circuits can be realized using double resonance effects. Using this design we fabricated an FFO using NbN/Pb Josephson junction and a stripline made of NbN/Nb_2O_5/Nb, and succeed in demonstrating the validity of the inductive coupling method.

这项研究的建议是开发一种新的超导振荡器，用于测量亚毫米波。在这项研究中，我们获得了以下结果：1。对通量流振荡器（FFO）的性能进行评估，我们成功地观察了使用NBN/PB JOSEPHSON连接和NB/NB/NB/////////////NB////nb//nb///nb//nb//nb//nb/nb/nb/nb/nb/nb/pb，在100GHz和1500GHz之间的频率范围内进行了振荡特性的观察。 Al/NB Josephson连接。使用以前的结，我们表明可以在Stripline中诱导1-3 Ma的电流。使用后一个连接，我们成功地以超过1THZ的频率获得了振荡输出。2。用电感耦合方法进行的阻抗匹配电路的开发通过模拟显示，可以使用双重谐振效应实现宽带匹配的电路。使用此设计，我们使用NBN/PB Josephson结和由NBN/NB_2O_5/NB制造的条带制造了FFO，并成功地展示了电感耦合方法的有效性。

项目成果

Md.S.Hossain et al.: "Enlargement of Kinetic Inductance of NbN Superconducting Thin Films for Device Applications" Jpn.J.Appl.Phys.31. 1033-1038 (1992)

Md.S.Hossain 等人：“用于器件应用的 NbN 超导薄膜的动感放大”Jpn.J.Appl.Phys.31。

K.Eupuku: "Modeling the dc Superconducting Quantam Interference Device Coupled to the Multiturn Input Coil" J.Appl.Phys.69. 7295-7300 (1991)

K.Eupuku：“对耦合到多匝输入线圈的直流超导量子干涉装置进行建模”J.Appl.Phys.69。

Md.S.Hossain et al.: "Enlargement of kinetic Indactance of NbN Superconducting Thin Films for Device Applications" Jpn.J.Appl.Phys.31. 1033-1038 (1992)

Md.S.Hossain 等人：“用于器件应用的 NbN 超导薄膜动感放大”Jpn.J.Appl.Phys.31。

T.Kisu et al.: "Dependence of Magnetic Field Penetration Depth on Resistivity and Critical Temperature in C-Axis-Oriented YBaCuO Thin Films" Jpn.J.Appl.Phys.31. L1027-1030 (1992)

T.Kisu 等人：“C 轴取向 YBaCuO 薄膜中磁场穿透深度对电阻率和临界温度的依赖性”Jpn.J.Appl.Phys.31。

K.Eupuku: "DC Superconducting Quantum Interference Device Utilizing the High Tc Step-Edge Junction" Jpn.J.Appl.Phys.30. L1121-L1124 (1991)

K.Eupuku：“利用高温阶梯边缘结的直流超导量子干涉装置”Jpn.J.Appl.Phys.30。