AOTF成像光谱仪声光晶体光谱传递函数的研究
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摘要
基于AOTF的成像光谱仪是集图像、光谱及偏振信息为一体的新型探测仪器,仪器的光谱传递函数是衡量仪器性能的一项重要指标。介绍了单AOTF型和双AOTF型成像光谱仪的工作原理,利用光学域光谱透过函数,推导了以波数Δv表示的单、双型AOTF光谱传递函数,在工作波段为400nm～900nm内,计算对比了单、双AOTF型光谱传递函数,并对影响双AOTF型光谱传递函数的因素进行了仿真分析,最后对仪器参数的选取进行了分析和讨论。结果表明:在入射光极角30°,声光互作用长度5mm工作波段下,当双AOTF型成像光谱仪工作中心波长相等时,相比同一工作中心波长时的单AOTF型成像光谱仪,光谱传递函数提高了68%;当工作中心波长不相等时,双AOTF型光谱传递函数并不绝对优于单AOTF型,存在临界值。
The acoustic-optic tunable filter(AOTF)-based imaging spectrometer is a new type of detection instrument that integrates image,spectrum and polarization information.The spectral transfer function of the instrument is an important indicator to measure the performance of the instrument.This paper first introduces the working principle of single AOTF-type and dual AOTF-type imaging spectrometer.Then by using the optical domain spectral transmission function,the single and dual AOTF spectral transfer functions expressed by wave number are derived,and in the working band of 400 nm～900 nm,the single and dual AOTF-type spectral transfer functions are calculated and compared.Moreover,the factors affecting the dual AOTFtype spectral transfer function are simulated and analyzed.Finally,the selection of instrument parameters are analyzed and discussed.The results show that with the parameters of the incident light polar angle of 30°and the acousto-optic interaction length of 5 mm,when the wavelengths of the working centers of the dual AOTF imaging spectrometers are equal,the spectral transfer function is improved by 68%compared to the single AOTF imaging spectrometer at the same working center wavelength;when the working center wavelengths are not equal,the dual AOTF-type spectral transfer function is not absolutely superior to the single AOTF type,and there is a critical value.
The acoustic-optic tunable filter(AOTF)-based imaging spectrometer is a new type of detection instrument that integrates image,spectrum and polarization information.The spectral transfer function of the instrument is an important indicator to measure the performance of the instrument.This paper first introduces the working principle of single AOTF-type and dual AOTF-type imaging spectrometer.Then by using the optical domain spectral transmission function,the single and dual AOTF spectral transfer functions expressed by wave number are derived,and in the working band of 400 nm～900 nm,the single and dual AOTF-type spectral transfer functions are calculated and compared.Moreover,the factors affecting the dual AOTFtype spectral transfer function are simulated and analyzed.Finally,the selection of instrument parameters are analyzed and discussed.The results show that with the parameters of the incident light polar angle of 30°and the acousto-optic interaction length of 5 mm,when the wavelengths of the working centers of the dual AOTF imaging spectrometers are equal,the spectral transfer function is improved by 68%compared to the single AOTF imaging spectrometer at the same working center wavelength;when the working center wavelengths are not equal,the dual AOTF-type spectral transfer function is not absolutely superior to the single AOTF type,and there is a critical value.
引文
[1]GUPTA N,SUHRE D R.Effects of sidelobes on acousto-optic tunable filter imaging[J].Optical Engineering.2017,56(7):073106.
[2]ZHOU Yang.Research on mid-infrared hypersectral imaging technology based on AOTF[D].Beijing:First Research Institute of China Aerospace Science and Technology Corporation,2017.周阳.基于AOTF的中红外高光谱成像技术研究[D].北京:中国航天科技集团公司第一研究院,2017.
[3]WANG Pengchong.Acoustooptic modulation visible hyperspectral imaging technology[D].Harbin:Harbin Institute of Technology,2017.王鹏冲.声光调制型可见光高光谱成像技术研究[D].哈尔滨:哈尔滨工业大学,2017.
[4]CHANG Lingying,ZHAO Baochang,QIU Yuehong,et al.Optical and mechanical system design of AOTFimaging spectrometer[J].Journal of Applied Optics,2010,31(3):345-349.常凌颖,赵葆常,邱跃洪,等.AOTF成像光谱仪光机系统设计[J].应用光学,2010,31(3):345-349.
[5]KATZBERG S J,STATHAM R B.Performance assessment of the digital array scanned interferometer cancept[J].NASA Technical Paper,1996,60:3570.
[6]XIANG Libin,YUAN Yan,LYU Qunbo.Spectral transfer function of Fourier transform spectroscopic imager[J].Journal of Physics,2009,58(8):5399-5405.相里斌,袁艳,吕群波.傅里叶变换光谱成像仪光谱传递函数研究[J].物理学报,2009,58(8):5399-5405.
[7]WANG Xinquan.Static spectral polarization imaging[D].Beijing:Graduate School of Chinese Academy of Sciences(Xian Institute of OpticalPrecision Machinery),2011.王新全.静态光谱偏振成像技术研究[D].北京:中国科学院研究生院(西安光学精密机械研究所),2011.
[8]ZHAO Liefeng,XU Zhihai,FENG Huajun,et al.Sampling modulation transfer Function of dispersive spectrometer and its influence on Gaussian spectral line[J].Spectroscopy and Spectral Analysis,2009,29(6):1717-1720.赵烈烽,徐之海,冯华君,等.色散型光谱仪采样调制传递函数及对高斯型光谱谱线的影响[J].光谱学与光谱分析,2009,29(6):1717-1720.
[9]ZHU Haibo,GUAN Song.Design of imaging spectrometer system based on acousto-optic tunable filter[J].Photovoltaic Technology Application,2017,32(6):20-23.朱海波,关松.基于声光可调谐滤光器的成像光谱仪系统设计[J].光电技术应用,2017,32(6):20-23.
[10]ZHANG Chunguang.Research on acousto-optic adjustable filtering technology basedon hyperspectral imaging system[D].Harbin:Harbin Institute of Technology,2008.张春光.基于超光谱成像系统的声光可调滤波技术研究[D].哈尔滨:哈尔滨工业大学,2008.
[11]GUPTA N,SUHRE D R.Effects of sidelobes on acousto-optic tunable filter imaging[J].Optical Engineering.2017,56(7):073106.
[12]ZHANG Rui.Research on high precision hyperspectral full polarization imaging systembased on acoustooptic and liquid crystalmodulation[D].Taiyuan:North University of China,2017.张瑞.基于声光和液晶调制的高精度高光谱全偏振成像系统研究[D].太原:中北大学,2017.
[13]GURECIVH B S,ANDREYEV S V,BELYAEV AV,et al.Information properties of acouto-optic tunable filters[J].SPIE,2000,4148:194-201.
[14]CHANG Lingying,ZHENG Aiguo,SONG Jingjing.Study on the diffraction efficiency of acousto-optic crystals in AOTF imaging spectrometer[J].Journal of Applied Optics,2018,39(3):359-365.常凌颖,郑爱国,宋晶晶.AOTF成像光谱仪声光晶体衍射效率研究[J].应用光学,2018,39(3):359-365.
[15]KATRASNIK J,PERNUS F,LIKAR B.Deconvolution in acousto-optical tunable filter spectrometry[J].Appl.Spectroscopy,2010,64(11):1265-1273.
[16]CUI Yan,CUI Dunjie.Spectral transfer characteristics and data recovery method of acousto-optic tunable filter[J].Spectroscopy and Spectral Analysis,1992(1):30-34.崔岩,崔敦杰.声光可调谐滤光器的光谱传递特性和数据恢复方法[J].光谱学与光谱分析,1992(1):30-34.
[17]JIANG Yi.Research on spectral imaging ofacoustooptic tunable filter[D].Wuhan:Wuhan University,2005.江益.声光可调滤波器光谱成像的研究[D].武汉:武汉大学,2005.
[18]ZHANG C G,WANG H,ZHANG ZH.et al.Narrowband double-filtering hyperspectral imaging based on a single AOTF[J].Opt.Lett.,2018,43:2126-2129.
[2]ZHOU Yang.Research on mid-infrared hypersectral imaging technology based on AOTF[D].Beijing:First Research Institute of China Aerospace Science and Technology Corporation,2017.周阳.基于AOTF的中红外高光谱成像技术研究[D].北京:中国航天科技集团公司第一研究院,2017.
[3]WANG Pengchong.Acoustooptic modulation visible hyperspectral imaging technology[D].Harbin:Harbin Institute of Technology,2017.王鹏冲.声光调制型可见光高光谱成像技术研究[D].哈尔滨:哈尔滨工业大学,2017.
[4]CHANG Lingying,ZHAO Baochang,QIU Yuehong,et al.Optical and mechanical system design of AOTFimaging spectrometer[J].Journal of Applied Optics,2010,31(3):345-349.常凌颖,赵葆常,邱跃洪,等.AOTF成像光谱仪光机系统设计[J].应用光学,2010,31(3):345-349.
[5]KATZBERG S J,STATHAM R B.Performance assessment of the digital array scanned interferometer cancept[J].NASA Technical Paper,1996,60:3570.
[6]XIANG Libin,YUAN Yan,LYU Qunbo.Spectral transfer function of Fourier transform spectroscopic imager[J].Journal of Physics,2009,58(8):5399-5405.相里斌,袁艳,吕群波.傅里叶变换光谱成像仪光谱传递函数研究[J].物理学报,2009,58(8):5399-5405.
[7]WANG Xinquan.Static spectral polarization imaging[D].Beijing:Graduate School of Chinese Academy of Sciences(Xian Institute of OpticalPrecision Machinery),2011.王新全.静态光谱偏振成像技术研究[D].北京:中国科学院研究生院(西安光学精密机械研究所),2011.
[8]ZHAO Liefeng,XU Zhihai,FENG Huajun,et al.Sampling modulation transfer Function of dispersive spectrometer and its influence on Gaussian spectral line[J].Spectroscopy and Spectral Analysis,2009,29(6):1717-1720.赵烈烽,徐之海,冯华君,等.色散型光谱仪采样调制传递函数及对高斯型光谱谱线的影响[J].光谱学与光谱分析,2009,29(6):1717-1720.
[9]ZHU Haibo,GUAN Song.Design of imaging spectrometer system based on acousto-optic tunable filter[J].Photovoltaic Technology Application,2017,32(6):20-23.朱海波,关松.基于声光可调谐滤光器的成像光谱仪系统设计[J].光电技术应用,2017,32(6):20-23.
[10]ZHANG Chunguang.Research on acousto-optic adjustable filtering technology basedon hyperspectral imaging system[D].Harbin:Harbin Institute of Technology,2008.张春光.基于超光谱成像系统的声光可调滤波技术研究[D].哈尔滨:哈尔滨工业大学,2008.
[11]GUPTA N,SUHRE D R.Effects of sidelobes on acousto-optic tunable filter imaging[J].Optical Engineering.2017,56(7):073106.
[12]ZHANG Rui.Research on high precision hyperspectral full polarization imaging systembased on acoustooptic and liquid crystalmodulation[D].Taiyuan:North University of China,2017.张瑞.基于声光和液晶调制的高精度高光谱全偏振成像系统研究[D].太原:中北大学,2017.
[13]GURECIVH B S,ANDREYEV S V,BELYAEV AV,et al.Information properties of acouto-optic tunable filters[J].SPIE,2000,4148:194-201.
[14]CHANG Lingying,ZHENG Aiguo,SONG Jingjing.Study on the diffraction efficiency of acousto-optic crystals in AOTF imaging spectrometer[J].Journal of Applied Optics,2018,39(3):359-365.常凌颖,郑爱国,宋晶晶.AOTF成像光谱仪声光晶体衍射效率研究[J].应用光学,2018,39(3):359-365.
[15]KATRASNIK J,PERNUS F,LIKAR B.Deconvolution in acousto-optical tunable filter spectrometry[J].Appl.Spectroscopy,2010,64(11):1265-1273.
[16]CUI Yan,CUI Dunjie.Spectral transfer characteristics and data recovery method of acousto-optic tunable filter[J].Spectroscopy and Spectral Analysis,1992(1):30-34.崔岩,崔敦杰.声光可调谐滤光器的光谱传递特性和数据恢复方法[J].光谱学与光谱分析,1992(1):30-34.
[17]JIANG Yi.Research on spectral imaging ofacoustooptic tunable filter[D].Wuhan:Wuhan University,2005.江益.声光可调滤波器光谱成像的研究[D].武汉:武汉大学,2005.
[18]ZHANG C G,WANG H,ZHANG ZH.et al.Narrowband double-filtering hyperspectral imaging based on a single AOTF[J].Opt.Lett.,2018,43:2126-2129.
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