Research on Infrared Molecular Faraday Imaging Filter Technology

doi:10.3969/j.issn.1000-1093.2019.07.014

Abstract

Abstract: Infrared molecular Faraday imaging filter (MOFIF) is a novel type of filtering device with comb-like discrete transmission spectrum. Its transmission spectrum is determined by the energy level transition of the molecule, which provides both high spectral resolution and high optical stability. A theoretical model of molecular Faraday optical filter (MFOF) is established by studying Faraday optical rotation effect. And the transmission spectrum of MFOF is measured by using a quantum cascade laser spectrum technology. The application of this technology in infrared imaging detection system is discussed. Preliminary experimental study on combustion diagnosis based on infrared MOFIF technology is also conducted. Pure NO images uninfluenced by H₂O infrared radiation were captured in the combustion environment. The experimental results show that MFOF has strong practicability and obvious superiority in infrared imaging remote sensing detection, especially in the detection of trace components in combustion systems. Key

Key words: hyperspectralimaging, filter, Faradayrotation, infraredremotesensing, combustiondiagnosis

CLC Number:

TB851⁺.7

XIONG Yuanhui， LUO Zhongjie， YU Guangbao， LIU Linmei， LI Faquan， WU Kuijun. Research on Infrared Molecular Faraday Imaging Filter Technology[J]. Acta Armamentarii, 2019, 40(7): 1443-1449.

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第40卷
第7期2019 年7月兵工学报ACTA
ARMAMENTARIIVol.40No.7Jul.2019

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