Freeform lens for two beams collimating of a spectrometer source

	Freeform lens for two beams collimating of a spectrometer source
	Wang, X.-D.; H. Liu; Y.-P. Li; X.-Q. Quan and Z.-W. Lu
	2016
发表期刊	Guangzi Xuebao/Acta Photonica Sinica
卷号	45 期号:8
摘要	A novel Hadamard transform spectrometer collimated by a freeform lens has been designed, which doubles the working spectral range while the spectral resolution is maintained. The freeform lens is designed to redistribute the broadband spectra of the source from 800 nm to 2400 nm into two collimated beams with different wavelengths and different tilting angles, to achieve the folding of spectra on the digital micro-mirror devices (DMD). It is constructed by solving two partial differential equations. The grating diffraction efficiency of the two split beams are more uniform and higher compared with the traditional method. The simulation results show that the bandwidth of the spectrometer is doubled and the spectral resolution is better than 10 nm. The optical system becomes more compact, and the energy efficiency is improved by 11.98% by folding the spectra with one freeform lens and one grating. (C) 2016 Elsevier B.V. All rights reserved.
文章类型	期刊
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57253
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang, X.-D.,H. Liu,Y.-P. Li,et al. Freeform lens for two beams collimating of a spectrometer source[J]. Guangzi Xuebao/Acta Photonica Sinica,2016,45(8).
APA	Wang, X.-D.,H. Liu,Y.-P. Li,&X.-Q. Quan and Z.-W. Lu.(2016).Freeform lens for two beams collimating of a spectrometer source.Guangzi Xuebao/Acta Photonica Sinica,45(8).
MLA	Wang, X.-D.,et al."Freeform lens for two beams collimating of a spectrometer source".Guangzi Xuebao/Acta Photonica Sinica 45.8(2016).

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