Effects of Spectralon absorption on reflectance spectra of typical planetary surface analog materials

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 天体化学和行星科学实验室

	Effects of Spectralon absorption on reflectance spectra of typical planetary surface analog materials
	Zhang, Hao 1; Yang, Yazhou 1; Jin, Weidong 1; Liu, Chujian 2; Hsu, Weibiao 3
刊名	OPTICS EXPRESS
	2014-09-08
卷号	22 期号:18 页码:21280-21291
ISSN号	1094-4087
英文摘要	Acquiring 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标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics
研究领域[WOS]	Optics
关键词[WOS]	NEAR-INFRARED SPECTROMETER ; IN-FLIGHT CALIBRATION ; DIFFUSE-REFLECTANCE ; BIDIRECTIONAL REFLECTANCE ; PARTICULATE SURFACES ; STANDARDS ; OLIVINE ; SPECTROSCOPY ; MIXTURES ; MINERALS
收录类别	SCI
原文出处	10.1364/OE.22.021280
语种	英语
WOS记录号	WOS:000341428000014
公开日期	2014-11-20
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/10678]
专题	紫金山天文台_天体化学和行星科学实验室
作者单位	1.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
推荐引用方式 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.