Hollow-core fiber-based Raman probe extension kit for <i>in situ</i> and sensitive ultramicro-analysis

Hao Cai; Xingtao Yu; Qian Chu; Zhiqiang Jin; Bo Lin; Guanghui Wang

doi:doi:10.3788/COL201917.110601

Chinese Optics Letters, 2019, 17 (11): 110601, Published Online: Sep. 6, 2019

Hollow-core fiber-based Raman probe extension kit for in situ and sensitive ultramicro-analysis Download： 798次

Hao Cai ¹Xingtao Yu ¹Qian Chu ¹Zhiqiang Jin ¹Bo Lin ²Guanghui Wang ^1,*

Author Affiliations

¹ College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China

² China Academy of Electronics and Information Technology, Beijing 100041, China

Figures & Tables

Fig. 1. Schematic diagram of a portable Raman probe extension kit.

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Fig. 2. Experimental diagram of the portable Raman probe extension kit.

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Fig. 3. Comparison of the Raman spectra for ethanol detected by SLHCF and direct detection.

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Fig. 4. Comparison of the Raman spectra for ethanol detected by the Raman detection system with and without gold film.

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Fig. 5. (a) Raman spectra for the ethanol solution whose concentration ranged from 5% to 100% with respect to water. (b) The linear fitting relationship between the Raman intensity at $881 {cm}^{- 1}$ and the concentration for the ethanol solution.

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Fig. 6. (a) The Raman intensity at $881 {cm}^{- 1}$ for the ethanol solution in water with the concentration varied in time. (b) The Raman intensity at $818 {cm}^{- 1}$ for the isopropanol solution in water with the concentration varied in time. (c) The concentration of the ethanol solution and isopropanol solution injected into the capillary varied with the time. (d) The schematic on the replacement and cleaning of the sample in experiments. (e) The Raman intensities at $881 {cm}^{- 1}$ and $818 {cm}^{- 1}$ are chosen to represent ethanol and isopropanol without mutual interference.

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Hao Cai, Xingtao Yu, Qian Chu, Zhiqiang Jin, Bo Lin, Guanghui Wang. Hollow-core fiber-based Raman probe extension kit for in situ and sensitive ultramicro-analysis[J]. Chinese Optics Letters, 2019, 17(11): 110601.

Hollow-core fiber-based Raman probe extension kit for in situ and sensitive ultramicro-analysis Download： 798次

Fig. 1. Schematic diagram of a portable Raman probe extension kit.

Fig. 2. Experimental diagram of the portable Raman probe extension kit.

Fig. 3. Comparison of the Raman spectra for ethanol detected by SLHCF and direct detection.

Fig. 4. Comparison of the Raman spectra for ethanol detected by the Raman detection system with and without gold film.

Fig. 5. (a) Raman spectra for the ethanol solution whose concentration ranged from 5% to 100% with respect to water. (b) The linear fitting relationship between the Raman intensity at $881 {cm}^{- 1}$ and the concentration for the ethanol solution.

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Hollow-core fiber-based Raman probe extension kit for in situ and sensitive ultramicro-analysis Download： 798次

Fig. 1. Schematic diagram of a portable Raman probe extension kit.

Fig. 2. Experimental diagram of the portable Raman probe extension kit.

Fig. 3. Comparison of the Raman spectra for ethanol detected by SLHCF and direct detection.

Fig. 4. Comparison of the Raman spectra for ethanol detected by the Raman detection system with and without gold film.

Fig. 5. (a) Raman spectra for the ethanol solution whose concentration ranged from 5% to 100% with respect to water. (b) The linear fitting relationship between the Raman intensity at 881 cm−1 and the concentration for the ethanol solution.

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Fig. 5. (a) Raman spectra for the ethanol solution whose concentration ranged from 5% to 100% with respect to water. (b) The linear fitting relationship between the Raman intensity at $881 {cm}^{- 1}$ and the concentration for the ethanol solution.