Laser & Optoelectronics Progress, Volume. 62, Issue 7, 0730003(2025)
Study of the Pigment Spectroscopy in the Terahertz Band
Figures & Tables(7)
Fig. 2. Terahertz time-domain spectra (the illustration shows the frequency spectra after Fourier transform)
Fig. 3. Terahertz transmission spectra of clam powder, red lead, mineral green, azurite, cinnabar, and realgar
Fig. 4. Refractive index spectra of clam powder, red lead, mineral green, azurite, cinnabar, and realgar
Fig. 5. Absorption spectra of clam powder, red lead, mineral green, azurite, cinnabar, and realgar
Fig. 6. FTIR spectra of clam powder, red lead, mineral green, azurite, cinnabar, and realgar
Table 1. Frequency positions of resonance absorption peaks in TDS and FTIR spectra
View tableTable 1. Frequency positions of resonance absorption peaks in TDS and FTIR spectra
Pigment TDS（low frequency） TDS（high frequency） FTIR（high frequency） red lead 1.87， 2.12， 2.5 3.39， 4.0， 4.7 3.38， 4.1， 4.67 cinnabar 1.17， 1.76， 2.58 2.58， 3.3， 3.63， 3.98 2.63， 3.38， 3.74， 3.86 clam powder 3.23， 4.3， 6.1 3.39， 4.3， 6.2 realgar 1.5 3.28， 5.04， 6.67 3.27， 5.1， 6.71 mineral green 3.24， 3.86， 4.57，5.27，5.98，6.33，6.68 3.27， 3.91， 4.61，5.3，5.96，6.25，6.60 azurite 1.87， 2.25 3.98， 4.21， 5.16， 5.51， 6.01，6.68 3.87， 4.13， 5.12， 5.56， 6.08，6.72
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Chenyu Li, Qingli Zhou, Liang Qu, Cunlin Zhang. Study of the Pigment Spectroscopy in the Terahertz Band[J]. Laser & Optoelectronics Progress, 2025, 62(7): 0730003
Paper Information
Category: Spectroscopy
Received: Sep. 30, 2024
Accepted: Nov. 15, 2024
Published Online: Apr. 3, 2025
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