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H. S. Kim(김혜수),S. Y. Ji(지석영),C. R. Yu(유채린),J. Y. Jung(정주연) Korean Society for Precision Engineering 2021 한국정밀공학회 학술발표대회 논문집 Vol.2021 No.11월
The infrared focal plane array (IRFPA) detection type imaging system has excellent thermal resolution and has a very good optical resolution as the number of pixels reaches a maximum of tens of thousands. However, since the IRFPA detection type imaging system is a thermal type that operates at room temperature, the basic thermal noise is high and the signal-to-noise (S/N) ratio is lower than that of the quantum type operating at extremely low temperature. To compensate for this, some of research has been done on the IRFPA polarimetric imaging system for high resolution. However, conventional fabrication methods such as photolithography and nano imprint lithography, are complex, time-consuming and expensive. In this paper, we propose a simple method for fabricating superpixel patterns applied to the mid-infrared region IRFPA polarimetric imaging system through the nanotransfer printing process using polyvinyl alcohol as an adhesive layer. This improves the sensitivity of the thermal type infrared sensor operating at room temperature, so that it has almost the same performance as the quantum type infrared sensor at a lower cost.