Time-resolved Raman spectroscopy of trinitrotoluene detected by Silicon Photomultiplier

Zhang Chunling; Wang Kaijun; Pang Qing

doi:10.3788/IRLA201847.1020004

Silicon Photomultiplier (SiPM) is a new type of solid state photodetector developed rapidly in recent decades, and has the potential to replace photo multiplier tube (PMT) in the Raman detection. A time-resolved Raman spectroscopy system based on a Silicon Photomultiplier (SiPM) was established in order to limit the influence of intense fluorescence on Raman spectroscopy, and alleviate the high dark count rate (DCR) problem of the SiPM. The variation of the Peak-to-Background Ratio (PBR) of Raman peaks along with counting time was investigated using trinitrotoluene (TNT) as the sample. Results indicate that with counting time increasing, the PBR of Raman peaks is increasing first and then decreasing, finally changing slowly. When counting time is 400 ps, a best PBR is achieved for the Raman peaks. The results are superior to that achieved by the commercial Raman spectrometers and the methods used in the literature. Also, the dark counts system collected are comparable to PMT. The method proposed in the paper is capable of reducing the high fluorescence background and the effects of SiPM's high DCR to a great extent, facilitating a marked improvement in the Raman PBR.

Time-resolved Raman spectroscopy of trinitrotoluene detected by Silicon Photomultiplier

1. School of Science,Xi'an University of Architecture and Technology,Xi'an 710055,China

Received Date: 2018-05-10

Rev Recd Date: 2018-06-20

Publish Date: 2018-10-25

Key words:

Abstract: Silicon Photomultiplier (SiPM) is a new type of solid state photodetector developed rapidly in recent decades, and has the potential to replace photo multiplier tube (PMT) in the Raman detection. A time-resolved Raman spectroscopy system based on a Silicon Photomultiplier (SiPM) was established in order to limit the influence of intense fluorescence on Raman spectroscopy, and alleviate the high dark count rate (DCR) problem of the SiPM. The variation of the Peak-to-Background Ratio (PBR) of Raman peaks along with counting time was investigated using trinitrotoluene (TNT) as the sample. Results indicate that with counting time increasing, the PBR of Raman peaks is increasing first and then decreasing, finally changing slowly. When counting time is 400 ps, a best PBR is achieved for the Raman peaks. The results are superior to that achieved by the commercial Raman spectrometers and the methods used in the literature. Also, the dark counts system collected are comparable to PMT. The method proposed in the paper is capable of reducing the high fluorescence background and the effects of SiPM's high DCR to a great extent, facilitating a marked improvement in the Raman PBR.

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Reference (14)

[1]	Zhang Ming, Zhu Shaoling, Gao Fei, et al. Breast cancer oxyhemoglobin surface enhanced Raman spectroscopy[J]. Infrared and Laser Engineering, 2017, 46(4):0433001. (in Chinese)
[2]	Liu Cuiling, Zhao Qi, Sun Xiaorong, et al. QuEChERS-Raman spectroscopy method for detecting imidacloprid residue in cucumbers[J]. Infrared and Laser Engineering, 2017, 46(11):1123002. (in Chinese)
[3]	Giancarlo Fini. Applications of Raman spectroscopy to pharmacy[J]. J Raman Spectrosc, 2004, 35:335-337.
[4]	Wu Bin, Chen Kunfeng, Wang Hengfei, et al. Effect of ethanol molecules on change of water hydrogen bonding with laser Raman spectra[J]. Infrared and Laser Engineering, 2013, 42(11):2951-2956. (in Chinese)
[5]	Esam M A Ali, Howell G M Edwards, Ian J Scowen. In-situ detection of single particles of explosive on clothing with confocal Raman microscopy[J]. Talanta, 2009, 78:1201-1203.
[6]	Nancy T Kawai, Kevin M Spencer. Raman spectroscopy for homeland defense applications[J]. Raman Technology For Today's Spectroscopists, 2004(6):54-58.
[7]	Carter J C, Angel S M, Lawrence-Snyder M, et al. Standoff detection of high explosive materials at 50 meters in ambient light conditions using a small Raman instrument[J]. Appl Spectrosc, 2005, 59:769-775.
[8]	Marrocchesi P S, Bagliesi M G, Basti A, et al. Photon counting with a FDIRC Cherenkov prototype readout by SiPM arrays[J]. Nuclear Instruments and Methods in Physics Research Section A, 2017, 845:447-451.
[9]	Wei Qingyang, Ma Tianyu, Xu Tianpeng, et al. Evaluation of signal energy calculation methods for a light-sharing SiPM-based PET detector[J]. Nuclear Instruments and Methods in Physics Research Section A, 2017, 848:81-86.
[10]	Dolenec R, Korpar S, Krizan P, et al. Ultrafast detection in particle physics and positron emission tomography using SiPMs[J]. Nuclear Instruments and Methods in Physics Research Section A, 2017, 876:257-259.
[11]	Akiba M, Inagaki K, Tsujino K. Photon number resolving SiPM detector with 1 GHz count rate[J]. Optical Express, 2012, 20(3):2779-2788.
[12]	Zhang G Q, Hu X B, Yang R, et al. Fast identification of trace substance by single-photon detection of characteristic Raman scatterings with gated coincidence technique and multipixel photon counters[J]. Applied Optics, 2010, 49(14):2601-2605.
[13]	Zhang Chunling, Li Zhe, Wu Zhenglong, et al. Study of surface enhanced Raman scattering of trace trinitrotoluene based on silver colloid nanoparticles[J]. Spectroscopy and Spectral Analysis, 2012, 32(3):686-690. (in Chinese)
[14]	Keson M , Nordberg M, Ehlerding A, et al. Picosecond laser pulses improves sensitivity in standoff explosive detection[C]//Proceedings of SPIE, 2011, 8017:80171C.

Time-resolved Raman spectroscopy of trinitrotoluene detected by Silicon Photomultiplier

doi: 10.3788/IRLA201847.1020004

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