Applications of multi-parameter sensing in pharmaceutical, agriculture and mineral industries using THz spectroscopy and Low-Wavenumber Raman spectroscopy

• Published in: Optics and laser technology 2024-10, Vol.177, p.111020, Article 111020
• Main Authors: Singh, Khushboo, Bajaj, Naini, Kashyap, Mayuri, Bandyopadhyay, Aparajita, Sengupta, Amartya
• Format: Article
• Language: English
• Subjects: Agriculture industry; Mineral industry; Pharmaceuticals; Terahertz spectroscopy; THz-Raman spectroscopy
• ISSN: 0030-3992; 1879-2545
• DOI: 10.1016/j.optlastec.2024.111020

•Overview of low wavenumber Raman and Terahertz spectroscopy and their significance in mineral, agricultural, & pharmaceutical industries.•Fundamental ideas of both the spectroscopic techniques inlcuding state-of-the-art have been described.•Significant work reported in all fields utilizing Terahertz and low wavenumber Raman spectroscopy have been discussed in-depth. Multi-parameter sensing using non-destructive optical spectroscopic techniques, specifically Terahertz spectroscopy and low-wavenumber Raman spectroscopy (also known as THz-Raman spectroscopy), has significantly reshaped the landscape of analytical methodologies in various industries. This comprehensive review article elucidates the transformative impact of these advanced spectroscopic methods within the fields of pharmaceutical, agriculture, and mineral industry. As technology continues to evolve, the ability to concurrently analyse multiple parameters at the molecular level has become a cornerstone for precision and efficiency in these critical sectors. In the pharmaceutical industry, THz spectroscopy has emerged as a key tool in ensuring the quality and stability of drug formulations, while low-wavenumber Raman spectroscopy complements by offering insights into chemical structure as well as composition. The agricultural sector benefits from the capabilities of these spectroscopic techniques in optimizing crop management, soil analysis, and resource utilization. Simultaneously, the mineral industry leverages THz and low-wavenumber Raman spectroscopy for accurate mineral identification, aiding in exploration, extraction, and processing. Through this review, we aim to provide a nuanced understanding of how multi-parameter sensing through THz and low-wavenumber Raman spectroscopy is driving innovation, enhancing quality control, and fostering sustainable practices across diverse industrial landscapes.