Establishment and correction of an Echelle cross-prism spectrogram reduction model

	Establishment and correction of an Echelle cross-prism spectrogram reduction model
	Zhang, R.; Bayanheshig; X. T. Li and J. C. Cui
	2017
发表期刊	Optics Communications
卷号	403
摘要	The accuracy of an echelle cross-prism spectrometer depends on the matching degree between the spectrum reduction model and the actual state of the spectrometer. However, the error of adjustment can change the actual state of the spectrometer and result in a reduction model that does not match. This produces an inaccurate wavelength calibration. Therefore, the calibration of a spectrogram reduction model is important for the analysis of any echelle cross-prism spectrometer. In this study, the spectrogram reduction model of an echelle cross-prism spectrometer was established. The image position laws of a spectrometer that varies with the system parameters were simulated to the influence of the changes in prism refractive index, focal length and so on, on the calculation results. The model was divided into different wavebands. The iterative method, least squares principle and element lamps with known characteristic wavelength were used to calibrate the spectral model in different wavebands to obtain the actual values of the system parameters. After correction, the deviation of actual x- and y-coordinates and the coordinates calculated by the model are less than one pixel. The model corrected by this method thus reflects the system parameters in the current spectrometer state and can assist in accurate wavelength extraction. The instrument installation and adjustment would be guided in model-repeated correction, reducing difficulty of equipment, respectively. (C) 2017 Elsevier B.V. All rights reserved.
收录类别	sci ; ei
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/59447
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang, R.,Bayanheshig,X. T. Li and J. C. Cui. Establishment and correction of an Echelle cross-prism spectrogram reduction model[J]. Optics Communications,2017,403.
APA	Zhang, R.,Bayanheshig,&X. T. Li and J. C. Cui.(2017).Establishment and correction of an Echelle cross-prism spectrogram reduction model.Optics Communications,403.
MLA	Zhang, R.,et al."Establishment and correction of an Echelle cross-prism spectrogram reduction model".Optics Communications 403(2017).

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