Volume 47 Issue 4
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Wang Shuai, Xia Jiabin, Yao Qifeng, Dong Mingli, Zhu Lianqing. Fore optical system design for remote laser Raman spectrum detection system[J]. Infrared and Laser Engineering, 2018, 47(4): 418004-0418004(8). doi: 10.3788/IRLA201847.0418004
Citation: Wang Shuai, Xia Jiabin, Yao Qifeng, Dong Mingli, Zhu Lianqing. Fore optical system design for remote laser Raman spectrum detection system[J]. Infrared and Laser Engineering, 2018, 47(4): 418004-0418004(8). doi: 10.3788/IRLA201847.0418004
shu

Fore optical system design for remote laser Raman spectrum detection system

doi: 10.3788/IRLA201847.0418004
  • 1.

    Beijing Engineering Research Center of Optoelectronic Information and Instruments,Beijing Information Science and Technology University,Beijing 100016,China;

  • 2.

    School of Instrument Science and Opto-electronics Engineering,Hefei University of Technology,Hefei 230009,China

  • Received Date: 2017-11-05
  • Rev Recd Date: 2017-12-15
  • Publish Date: 2018-04-25
  • In order to realize the Raman spectrum detection of high spatial resolution of remote material, a fore optical system of the common aperture remote laser Raman detection system was designed. The common aperture structure was applied in the optical system to realize the common aperture and common optical axis of the laser emission system, the Raman light collection system and the micro area imaging system. The designed optical system can focus the laser to reduce the size of the laser spot, so that the system has a better spatial resolution than the 0.125 mrad. The effective aperture of the Raman light collecting lens is 50 mm, Raman scattering light image height in coupling lens focal plane was less than 25m, space optical coupling can be directed to spectrometer with the slit width of 50m, optical fiber of 50m core diameter can also be employed for coupling this optical system and spectrometer. The system can be used for laser focusing, Raman detection and micro region imaging of long distance materials.
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    [4] Olcott Marshall A, Marshall C P. Field-based Raman spectroscopic analyses of an Ordovician stromatolite.[J]. Astrobiology, 2013, 13(9):814-820.
    [5] Sun M J, Liu J X, Wang X, et al. Application of Raman spectroscopy in the microbiology[J]. Biotechnology Bulletin, 2012, 10:63-68. (in Chinese)
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    [14] Gulati K K, Gambhir V, Reddy M N. Detection of nitro-aromatic compound in soil and sand using time gated Raman spectroscopy[J]. Defence Science Journal, 2017, 67(5):588-591.
    [15] Rd F C, Kassu A, Bose N, et al. Short distance standoff raman detection of extra virgin olive oil adulterated with canola and grapeseed oils[J]. Applied Spectroscopy, 2017, 71(6):1340-1347.
    [16] Li Z, Zheng H Y, Wang Y P, et al. Characteristics of Raman spectrum from stand-off detection[J]. Acta Physica Sinica-Chinese Edition, 2016, 65(5):134-143. (in Chinese)
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    [18] Liu K, Chen R L, Chang L Y, et al. Common-aperture dual-channel infrared scanning imaging optical system[J]. Journal of Applied Optics, 2012, 33(2):395-401. (in Chinese)
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Fore optical system design for remote laser Raman spectrum detection system

doi: 10.3788/IRLA201847.0418004
  • 1. Beijing Engineering Research Center of Optoelectronic Information and Instruments,Beijing Information Science and Technology University,Beijing 100016,China;
  • 2. School of Instrument Science and Opto-electronics Engineering,Hefei University of Technology,Hefei 230009,China
  • Received Date: 2017-11-05
  • Rev Recd Date: 2017-12-15
  • Publish Date: 2018-04-25

Abstract: In order to realize the Raman spectrum detection of high spatial resolution of remote material, a fore optical system of the common aperture remote laser Raman detection system was designed. The common aperture structure was applied in the optical system to realize the common aperture and common optical axis of the laser emission system, the Raman light collection system and the micro area imaging system. The designed optical system can focus the laser to reduce the size of the laser spot, so that the system has a better spatial resolution than the 0.125 mrad. The effective aperture of the Raman light collecting lens is 50 mm, Raman scattering light image height in coupling lens focal plane was less than 25m, space optical coupling can be directed to spectrometer with the slit width of 50m, optical fiber of 50m core diameter can also be employed for coupling this optical system and spectrometer. The system can be used for laser focusing, Raman detection and micro region imaging of long distance materials.

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