• Laser & Optoelectronics Progress
  • Vol. 61, Issue 9, 0930007 (2024)
Jingshun Zhang1, Xiaobao Lü2, Nengbin Cai3, and Kuidong Yu2,*
Author Affiliations
  • 1Investigation Department, Shanghai Police College, Shanghai 200137, China
  • 2Material Evidence Identification Center of Shanghai Municipal Public Security Bureau, Shanghai 200083, China
  • 3Shanghai Key Laboratory of Field Evidence, Shanghai 200083, China
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    DOI: 10.3788/LOP230501 Cite this Article Set citation alerts
    Jingshun Zhang, Xiaobao Lü, Nengbin Cai, Kuidong Yu. Identification of Shoe-Sole Materials Based on Two-Dimensional Correlation Infrared Spectroscopy[J]. Laser & Optoelectronics Progress, 2024, 61(9): 0930007 Copy Citation Text show less
    Infrared spectra of sole samples
    Fig. 1. Infrared spectra of sole samples
    Second derivatives spectra of sole samples
    Fig. 2. Second derivatives spectra of sole samples
    2D correlation infrared spectra of sample a. (a) Synchronous spectrum; (b) asynchronous spectrum
    Fig. 3. 2D correlation infrared spectra of sample a. (a) Synchronous spectrum; (b) asynchronous spectrum
    2D correlation infrared spectra of sample b. (a) Synchronous spectrum; (b) asynchronous spectrum
    Fig. 4. 2D correlation infrared spectra of sample b. (a) Synchronous spectrum; (b) asynchronous spectrum
    2D correlation infrared spectra of sample c. (a) Synchronous spectrum; (b) asynchronous spectrum
    Fig. 5. 2D correlation infrared spectra of sample c. (a) Synchronous spectrum; (b) asynchronous spectrum
    2D correlation infrared spectra of sample d. (a) Synchronous spectrum; (b) asynchronous spectrum
    Fig. 6. 2D correlation infrared spectra of sample d. (a) Synchronous spectrum; (b) asynchronous spectrum
    2D correlation infrared spectra of sample e. (a) Synchronous spectrum; (b) asynchronous spectrum
    Fig. 7. 2D correlation infrared spectra of sample e. (a) Synchronous spectrum; (b) asynchronous spectrum
    Wavenumber /cm-1Functional groupVibration mode
    3005C=C—HStretching vibration
    2920, 2850C—H(—CH, CH2—)Stretching vibration
    1655C=CStretching vibration
    1450=C—CH2Bending vibration
    1083Si—O
    964, 730C=C—H(1, 4-addition)Bending vibration
    700Si—O
    Table 1. Analysis of infrared absorption peaks of sole samples
    Vertical axisHorizontal axis
    1041107810921656
    1041
    1078+
    1092++
    1656---
    Table 2. Cross-peak analysis results of synchronous and asynchronous spectra of sample a
    Vertical axisHorizontal axis
    10371081108811661568
    1037
    1081-
    1088-+
    1166-++
    1568----
    Table 3. Cross-peak analysis results of synchronous and asynchronous spectra of sample b
    Vertical axisHorizontal axis
    650795103910921102
    650
    795-
    1039--
    1092---
    1102----
    Table 4. Cross-peak analysis results of synchronous and asynchronous spectra of sample c
    Vertical axisHorizontal axis
    66379310331088
    663
    793-
    1033--
    1088---
    Table 5. Cross-peak analysis results of synchronous and asynchronous spectra of sample d
    Vertical axisHorizontal axis
    915106811181571
    915
    1068+
    1118+-
    1571---
    Table 6. Cross-peak analysis results of synchronous and asynchronous spectra of sample e
    Jingshun Zhang, Xiaobao Lü, Nengbin Cai, Kuidong Yu. Identification of Shoe-Sole Materials Based on Two-Dimensional Correlation Infrared Spectroscopy[J]. Laser & Optoelectronics Progress, 2024, 61(9): 0930007
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