Broadband lumped-element Josephson parametric amplifier with single-step lithography

被引：15
|
作者：
Elo, T. [1 ]
Abhilash, T. S. [1 ]
Perelshtein, M. R. [1 ,2 ]
Lilja, I. [1 ]
Korostylev, E. V. [2 ]
Hakonen, P. J. [1 ]
机构：
[1] Aalto Univ, Sch Sci, Dept Appl Phys, Low Temp Lab, POB 15100, FI-00076 Aalto, Finland
[2] Moscow Inst Phys & Technol, Moscow 141700, Russia
来源：
APPLIED PHYSICS LETTERS | 2019年 / 114卷 / 15期
基金：
芬兰科学院; 欧盟地平线“2020”;
关键词：
AMPLIFICATION;
D O I：
10.1063/1.5086091
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present a lumped-element Josephson parametric amplifier (JPA) fabricated using a straightforward e-beam lithography process. Our strongly coupled flux-pumped JPA achieves a gain of 20 dB with a bandwidth of 95 MHz around 5 GHz, while the center frequency is tunable by more than 1 GHz, with the additional possibility for rapid tuning by varying the pump frequency alone. Analytical calculations based on the input-output theory reproduce our measurement results closely. Published under license by AIP Publishing.
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页数：4
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