Modelling of Freestanding Membrane-Supported Superconducting Al/Ti Bilayer Transition Edge Sensor Bolometer
| Autor: | Jian-She Liu, Jie Liu, Kamal Ahmad, Wei Chen, Gang Li |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Mean squared error Cosmic microwave background Bolometer Astrophysics::Instrumentation and Methods for Astrophysics Explained sum of squares 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Polarization (waves) 01 natural sciences Electronic Optical and Magnetic Materials law.invention Computational physics law 0103 physical sciences Materials Chemistry Curve fitting Millimeter Electrical and Electronic Engineering Transition edge sensor 0210 nano-technology |
| Zdroj: | Journal of Electronic Materials. 48:799-805 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-018-6750-3 |
| Popis: | The aim of this research work was to model the behaviour of a transition edge sensor (TES) bolometer by applying curve fitting methodology on empirical data. Data obtained from the experiments were used to plot characteristic curves to find resistance–temperature (R–T) and current–voltage (I–V) relations. The measurements were taken by using a cryogenic-free 3He refrigerator with a least temperature of 320 mK. Least-squares curve fitting technique was used to devise the equations of the experimentally obtained data. Similarly, the empirical data and estimated curves were validated using the parameters of R-squared, sum of squares due to error (SSE), adjusted R-squared, and root-mean-squared error (RMSE). By comparing the plot of the empirical data and estimated behaviour curves showed high degree of similarity, and hence it was established that these equations could be used to estimate the bolometer’s operating behaviour for different ambient conditions with minimal percentage error. We also studied etched (TES device suspended on SiN) and non-etched (Si substrate based device) samples of bolometers. It was concluded that bolometers made up of etched sample of TES are appropriate for use in millimetre and submillimeter waves, especially for cosmic microwave background polarization detection. |
| Databáze: | OpenAIRE |
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