Ultra High Q-Factor Superconducting Microresonator to Use in Microwave Kinetic Inductance Detectors

Morteza Heidari | S. Mohammad Hassan Javadzadeh

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URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=116885
Date :  2019/07/23
Publish in :    کنفرانس - 27th Iranian Conference on Electrical Engineering (ICEE) 2019 (ICEE2019)
DOI :  https://doi.org/10.1109/IranianCEE.2019.8786573
Link :  https://ieeexplore.ieee.org/abstract/document/8786573
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Abstract :

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This article is focused on the design and development of superconducting Microwave Kinetic Inductance Detector (MKID) which is used at near, mid and far-infrared, optical and ultraviolet wavelengths for astronomical applications. MKIDs are superconducting micro-resonators which are very much considered, due to high sensitivity, simplicity in fabrication and ease of read out by a coplanar waveguide or microstrip transmission line. Here a new structure for inductor of lumped element microwave resonator is proposed that causes a very high Quality factor in smaller dimensions. Our resonator’s intrinsic Q factor is above 8×106 in dimensions of 441×487 􀈝m2 which is the highest value in such dimensions. due to the small dimensions of this resonator, makes it desirable to use in large arrays spectrometers.

https://ieeexplore.ieee.org/abstract/document/8786573