Development of a Spatial Heterodyne Terahertz Raman Spectrometer with Echelle Gratings

doi:10.3390/app13020967

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	Development of a Spatial Heterodyne Terahertz Raman Spectrometer with Echelle Gratings
	Y. Q. Sun, X. T. Li, J. Galantu, Q. H. Chu, J. Chen, F. G. Li, N. Song, G. Wang and Q. L. Ni
	2023
发表期刊	Applied Sciences-Basel
卷号	13 期号:2 页码:14
摘要	This paper introduces an echelle grating spatial heterodyne terahertz Raman spectrometer (E-SHTRS) that combines echelle gratings with spatial heterodyne terahertz Raman spectroscopy technology by replacing the gratings on the interference arms with 36 gr/mm echelle gratings. Echelle gratings are characterized by high diffraction levels and multi-level simultaneous diffraction capability, giving the E-SHTRS higher spectral resolution and a wider detection band range than the conventional spectrometer. The system's resolution can reach 1.37 cm(-1). The spectral detection range of a single level of the proposed system is 701.61 cm(-1). A total of nine levels are used in the system, giving a total spectral detection range of 6314 cm(-1). Using this system, terahertz Raman spectroscopy of organic acid samples was performed, some food additives and medicines were measured, and a salicylic acid aqueous solution was measured with a minimum measurable concentration of 0.01 mol/L. In addition, the samples were detected over a wide band (10-5131 cm(-1)) to acquire more complete spectral information. These experiments verify that the E-SHTRS offers good detection performance and has a wide range of possible applications, including a theoretical support role in food safety, biomedicine, environmental protection, and other fields.
DOI	10.3390/app13020967
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收录类别	sci
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67874
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	Y. Q. Sun, X. T. Li, J. Galantu, Q. H. Chu, J. Chen, F. G. Li, N. Song, G. Wang and Q. L. Ni. Development of a Spatial Heterodyne Terahertz Raman Spectrometer with Echelle Gratings[J]. Applied Sciences-Basel,2023,13(2):14.
APA	Y. Q. Sun, X. T. Li, J. Galantu, Q. H. Chu, J. Chen, F. G. Li, N. Song, G. Wang and Q. L. Ni.(2023).Development of a Spatial Heterodyne Terahertz Raman Spectrometer with Echelle Gratings.Applied Sciences-Basel,13(2),14.
MLA	Y. Q. Sun, X. T. Li, J. Galantu, Q. H. Chu, J. Chen, F. G. Li, N. Song, G. Wang and Q. L. Ni."Development of a Spatial Heterodyne Terahertz Raman Spectrometer with Echelle Gratings".Applied Sciences-Basel 13.2(2023):14.

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