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Effects of Spectralon absorption on reflectance spectra of typical planetary surface analog materials
Zhang, Hao1; Yang, Yazhou1; Jin, Weidong1; Liu, Chujian2; Hsu, Weibiao3
2014-09-08
Source PublicationOPTICS EXPRESS
ISSN1094-4087
Volume22Issue:18Pages:21280-21291
AbstractAcquiring accurate visible and near-infrared (VisNIR) reflectance values of atmosphereless celestial bodies is very important in inferring the physical and geological properties of their surficial materials. When a calibration target with inherent non-trivial absorption features is used, the calibrated reflectance would essentially always contain spurious spectral features and the spectroscopic data may easily be misinterpreted if the artifact is not properly taken care of. We demonstrate with laboratory reflectance measurements that the VisNIR spectra of three typical planetary surface analog materials, lunar simulant JSC-1A, olivine and pyroxene grains, have an artificial peak at 2.1 mu m when Spectralon-type plaque made of polytetrafluoroethylene is used as the calibration target in the NIR region. The degree of severity of this artifact is dependent on the strength of the 2.0 mu m absorption feature of the mineral. Empirical methods are proposed to remove this artifact to bring the spectra close to that calibrated by a gold mirror which does not have any conspicuous absorption features in the NIR region. The correction methods may be applied to reflectance data acquired by the VisNIR imaging spectrometer onboard the Yutu Rover of the Chinese Chang'E 3 lunar mission which employed an onboard Spectralon-type calibration target. (C) 2014 Optical Society of America
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1364/OE.22.021280
WOS KeywordNEAR-INFRARED SPECTROMETER ; IN-FLIGHT CALIBRATION ; DIFFUSE-REFLECTANCE ; BIDIRECTIONAL REFLECTANCE ; PARTICULATE SURFACES ; STANDARDS ; OLIVINE ; SPECTROSCOPY ; MIXTURES ; MINERALS
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Indexed BySCI
Language英语
WOS Research AreaOptics
WOS SubjectOptics
WOS IDWOS:000341428000014
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10678
Collection天体化学和行星科学实验室
Affiliation1.China Univ Geosci, Planetary Sci Inst, Sch Earth Sci, Wuhan 430074, Peoples R China
2.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Hao,Yang, Yazhou,Jin, Weidong,et al. Effects of Spectralon absorption on reflectance spectra of typical planetary surface analog materials[J]. OPTICS EXPRESS,2014,22(18):21280-21291.
APA Zhang, Hao,Yang, Yazhou,Jin, Weidong,Liu, Chujian,&Hsu, Weibiao.(2014).Effects of Spectralon absorption on reflectance spectra of typical planetary surface analog materials.OPTICS EXPRESS,22(18),21280-21291.
MLA Zhang, Hao,et al."Effects of Spectralon absorption on reflectance spectra of typical planetary surface analog materials".OPTICS EXPRESS 22.18(2014):21280-21291.
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