研究目的
To design Kinetic Inductance Detectors (KID) sensitive to polarization for use in a polarimetric system for fusion plasma diagnostics applications.
研究成果
With this preliminary work we were able to obtain a first set of geometrical parameters and characteristics upon which we can base the production of KIDs to be applied as polarimetric fusion diagnostic. These features include a multi-pixel polarization-sensitive setup with well separated resonance frequencies.
研究不足
The study is preliminary, and the actual performance of the KID in a fusion plasma diagnostics application needs to be validated through further experiments and testing.
1：Experimental Design and Method Selection:
The design of the detector was carried out via Sonnet, taking as reference the pixel design of the NIKA2 camera. The chosen resonator type is of the lumped elements kind over the distributed resonator type.
2：Sample Selection and Data Sources:
The chosen substrate is Si, and the thickness of the NbN film is 45 nm.
3：List of Experimental Equipment and Materials:
NbN for construction, Si substrate, Sonnet software for design and simulations.
4：Experimental Procedures and Operational Workflow:
The dimensions of a single pixel is around 4x5 mm2, with a strip width of 10 μm and 40 μm of interline spacing. The transmission line, a co-planar waveguide, coupled to the various pixels has a width of 600 μm.
5：Data Analysis Methods:
The main focus of the simulation work revolved around studying cross talking between pixels and optimizing the coupling factor between the absorber and the transmission line.
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