Wavefront Aberration Analysis and Spectrum Correction of Microminiature Fourier Transform Spectrometer

doi:10.3788/AOS201838.0230001

CIOMP OpenIR

	Wavefront Aberration Analysis and Spectrum Correction of Microminiature Fourier Transform Spectrometer
	Lu, Jinguang; Liang, Jingqiu; Liang, Zhongzhu; Qin, Yuxin
	2018
发表期刊	Guangxue Xuebao/Acta Optica Sinica
ISSN	2532239
卷号	38 期号:2
摘要	In order to realize the microminiaturization of the Fourier transform spectrometer (FTS) further, the micro lens array is introduced to FTS based on stepped micro-mirrors, which is used to collect each interference optical field unit modulated by stepped micro-mirrors synchronously. Because of the spatial modulation mode, the system wavefront aberration causes the wavefront distortion of each interference optical field unit. The scalar diffraction model of the interaction between the optical field with wavefront aberration and the stepped micro-mirrors, and the micro lens array is built. By means of calculation, the wavefront aberration is found impairing the intensity of each point in interference image at different levels, and introducing the low-frequency spectrum noise to the recovered spectrum. The analyses show that the intensity attenuation of interference image points results from the intensity modulation by wavefront aberration Strehl ratio of each interference optical field unit, and the low-frequency spectrum noise is mainly from the Fourier spectrum of Strehl ratio. According to the modulation characteristic of the wavefront aberration on interferogram, a method that using the wavefront aberration Strehl ratio to correct the interferogram intensity is proposed. The results indicate that this method improves the distortion of the recovered spectrum effectively. 2018, Chinese Lasers Press. All right reserved.
关键词	Aberrations Bolometers Fourier transform infrared spectroscopy Fourier transforms Interferometry Microlenses Mirrors Modulation Optical signal processing Spacecraft instruments Spectrometers Spectroscopy Underwater acoustics Wavefronts
DOI	10.3788/AOS201838.0230001
收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/60854
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Lu, Jinguang,Liang, Jingqiu,Liang, Zhongzhu,et al. Wavefront Aberration Analysis and Spectrum Correction of Microminiature Fourier Transform Spectrometer[J]. Guangxue Xuebao/Acta Optica Sinica,2018,38(2).
APA	Lu, Jinguang,Liang, Jingqiu,Liang, Zhongzhu,&Qin, Yuxin.(2018).Wavefront Aberration Analysis and Spectrum Correction of Microminiature Fourier Transform Spectrometer.Guangxue Xuebao/Acta Optica Sinica,38(2).
MLA	Lu, Jinguang,et al."Wavefront Aberration Analysis and Spectrum Correction of Microminiature Fourier Transform Spectrometer".Guangxue Xuebao/Acta Optica Sinica 38.2(2018).

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