Design and Development of Optical System for Portable Raman Spectrometer

Yan, 安岩 An; Ying, 刘英 Liu; Qiang, 孙强 Sun; Chun, 李淳 Li; Bing, 刘兵 Liu; Chengzhi, 姜承志 Jiang

doi:10.3788/aos201333.0330001

Cited by 3 publications

(1 citation statement)

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“…The numerical aperture (NA) of the object side was chosen to be 0.16, while the grating constant was 0.100 lines/µm and the width of the slit was 30 µm. We chose the CCD size, which was comparable to the image plane [12]. The initial parameters of the system design are shown in Table 2.…”

Section: Design Parameters For the Simulation Of The Raman Spectrometermentioning

confidence: 99%

Design Simulation of Czerny–Turner Configuration-Based Raman Spectrometer Using Physical Optics Propagation Algorithm

Naeem

Fatima

Hussain

et al. 2022

Optics

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We report the design simulation of the Raman spectrometer using Zemax optical system design software. The design is based on the Czerny–Turner configuration, which includes an optical system consisting of an entrance slit, two concave mirrors, reflecting type diffraction grating and an image detector. The system’s modeling approach is suggested by introducing the corresponding relationship between detector pixels and wavelength, linear CCD receiving surface length and image surface dimension. The simulations were carried out using the POP (physical optics propagation) algorithm. Spot diagram, relative illumination, irradiance plot, modulation transfer function (MTF), geometric and encircled energy were simulated for designing the Raman spectrometer. The simulation results of the Raman spectrometer using a 527 nm wavelength laser as an excitation light source are presented. The present optical system was designed in sequential mode and a Raman spectrum was observed from 530 nm to 630 nm. The analysis shows that the system’s image efficiency was quite good, predicting that it could build an efficient and cost-effective Raman spectrometer for optical diagnostics.

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Section: Design Parameters For the Simulation Of The Raman Spectrometermentioning

confidence: 99%

Design Simulation of Czerny–Turner Configuration-Based Raman Spectrometer Using Physical Optics Propagation Algorithm

Naeem

Fatima

Hussain

et al. 2022

Optics

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Research and Experiment on Key Technology of Water-Fertilizer Integration Intelligent Equipment

Nihong¹,

Can²,

Chen³

et al. 2021

2021 6th International Conference on Automation, Control and Robotics Engineering (CACRE)

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Greenhouse gases monitoring instrument on a GF-5 satellite-II: correction of spatial and frequency-dependent phase distortion

Wang

Luo

et al. 2023

Opt. Express

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Interference data obtained by a spatial heterodyne spectrometer (SHS) is subject to various error factors and suffers from complex phase distortion. Traditional phase correction methods, such as the Amplitude, Merzt, and Forman methods, extract phase distortion in the spectral domain and correct it, which cannot effectively correct spatial phase distortion. Through theoretical derivation and numerical simulation, the spatial phase distortion is firstly determined and corrected in the interference domain. The frequency-dependent phase distortion is then extracted in the spectral domain and corrected. This novel phase distortion correction method named the phase decomposition method was applied to the in-orbit interference data of Greenhouse gases Monitoring Instrument-II (GMI-II). Compared with traditional phase correction methods, the root-mean-square error of the spectrum corrected using the phase decomposition method is reduced by 81.37%.

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Design and Development of Optical System for Portable Raman Spectrometer

Cited by 3 publications

References 0 publications

Design Simulation of Czerny–Turner Configuration-Based Raman Spectrometer Using Physical Optics Propagation Algorithm

Design Simulation of Czerny–Turner Configuration-Based Raman Spectrometer Using Physical Optics Propagation Algorithm

Research and Experiment on Key Technology of Water-Fertilizer Integration Intelligent Equipment

Greenhouse gases monitoring instrument on a GF-5 satellite-II: correction of spatial and frequency-dependent phase distortion

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