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    Journals >Infrared and Laser Engineering >Volume 53 >Issue 12 >Page 20240293 > Article
    • Infrared and Laser Engineering
    • Vol. 53, Issue 12, 20240293 (2024)
    Application and research progress of terahertz spectroscopy technology in explosive detection
    Ruiping ZHANG1, Qin WANG2, and Lixia BAO3,*
    Author Affiliations
  • 1Department of Public Security, Beijing Police College, Beijing 102202, China
  • 2Lenovo (Beijing) Co., Ltd., Beijing 100089, China
  • 3Analysis and Testing Center, Beijing Institute of Technology, Beijing 102488, China
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    DOI: 10.3788/IRLA20240293 Cite this Article
    Ruiping ZHANG, Qin WANG, Lixia BAO. Application and research progress of terahertz spectroscopy technology in explosive detection[J]. Infrared and Laser Engineering, 2024, 53(12): 20240293 Copy Citation Text show less
    The position of terahertz waves in the electromagnetic spectrum
    Fig. 1. The position of terahertz waves in the electromagnetic spectrum
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    Typical terahertz time-domain spectroscopy system
    Fig. 2. Typical terahertz time-domain spectroscopy system
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    Absorption coefficient spectra of RDX (red) and HMX (blue)
    Fig. 3. Absorption coefficient spectra of RDX (red) and HMX (blue)
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    Types of explosivesCharacteristic peak position/THzThe range of spectrum/THzReference
    RDX0.84, 1.08, 1.50, 1.92, 2.300.3-3[17]
    HMX1.75, 2.50, 2.900.3-3
    LLM-1051.27, 1.59, 2.00, 2.08, 2.20, 2.290.2-2.4[25]
    FOX-71.59/2.12
    RDX0.82, 1.05, 1.50, 1.92, 2.20
    SAZ1.34, 1.81, 2.35, 2.57, 2.75, 2.920.8-3[11]
    AAZ1.76, 2.40, 2.55, 2.71, 2.86
    GUAZ1.38, 2.01, 2.31, 2.55, 2.84, 2.91
    TAGAZ1.10, 1.46, 1.67, 2.12, 2.25, 2.38, 2.96
    HNIW0.84, 1.45, 2.28, 2.77
    TEX1.71, 2.33, 2.53, 2.91
    Table 1. Characteristic terahertz spectrum of different explosives
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    Relative humidityMethod
    Traditional peak searching algorithmWavelet transform +ResNet-50
    2%95%99.6%
    50%40%96.6%
    55%35%96.6%
    67%-96.2%
    Table 2. Recognition rates comparison of different methods
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    Ruiping ZHANG, Qin WANG, Lixia BAO. Application and research progress of terahertz spectroscopy technology in explosive detection[J]. Infrared and Laser Engineering, 2024, 53(12): 20240293
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