Micro-Raman spectroscopy and THz time domain spectroscopic imaging of Pietra Dura marble inlay work resembling Taj Mahal architectural motifs

Advanced spectroscopic techniques, including micro-Raman spectroscopy and terahertz time domain spectroscopic imaging, have demonstrated unprecedented capability to detect fine cracks and subtle surface changes in marble structures, such as the Pietra Dura inlays of the Taj Mahal. These non-invasive methods can identify visually imperceptible damages, offering a faster, more reliable alternative to traditional visual assessments. By mapping minute variations introduced by organic materials with high accuracy, this approach promises to revolutionize the structural assessment of heritage sites, enabling proactive conservation efforts before visible damage occurs.

Bandyopadhyay, A., Garg, D., & Sengupta, A. (2019). Micro-Raman spectroscopy and THz time domain spectroscopic imaging of Pietra Dura marble inlay work resembling Taj Mahal architectural motifs. Optics for Arts, Architecture, and Archaeology VII, 44. https://doi.org/10.1117/12.2525574