Photo-vibrational spectroscopy using quantum cascade laser and laser Doppler vibrometer

• Main Authors: Liu, Huan, Hu, Qi, Xie, Jiecheng, Fu, Yu
• Other Authors: Lehmann, Peter
• Format: Article
• Language: English
• Published: 2019
• Subjects: Laser Interferometry; Engineering::Mechanical engineering; Photoacoustic Effects
• Online Access: https://hdl.handle.net/10356/106384; http://hdl.handle.net/10220/49594
• Institution: Nanyang Technological University

Photoacoustic/photothermal spectroscopy is an established technique for detection of chemicals and explosives. However, prior sample preparation is required and the analysis is conducted in a sealed space with a high-sensitivity sensor coupled with a lock-in amplifier, limiting the technique to appl...