Research of Infrared Imaging at Atmospheric Pressure Using a Substrate-Free Focal Plane Array

【摘要】 An equivalent circuit model to the substrate-free focal plane array（FPA） is established.Using this fast and effective model,the performance of infrared（IR） imaging at atmospheric pressure is investigated and it is found that the substrate-free FPA has the ability of IR imaging at atmospheric pressure,whereas it has a slightly degraded noise equivalent temperature difference（NETD） as compared with IR imaging under a high vacuum.This feature is also identified experimentally by a substrate-free FPA with pixel size of 50×50μm².The NETDs are measured to be 160mK at 10^-2 Pa pressure and 1.08K at atmospheric pressure.更多还原

【Abstract】 An equivalent circuit model to the substrate-free focal plane array（FPA） is established.Using this fast and effective model,the performance of infrared（IR） imaging at atmospheric pressure is investigated and it is found that the substrate-free FPA has the ability of IR imaging at atmospheric pressure,whereas it has a slightly degraded noise equivalent temperature difference（NETD） as compared with IR imaging under a high vacuum.This feature is also identified experimentally by a substrate-free FPA with pixel size of 50×50μm².The NETDs are measured to be 160mK at 10^-2 Pa pressure and 1.08K at atmospheric pressure.更多还原