Quartz-enhanced laser spectroscopy sensing

Gas sensing technology is widely applied in various fields, including environmental monitoring, industrial process control, medical diagnostics, safety warnings, and more. As a detection element, the quartz tuning fork (QTF) offers advantages such as high-quality factor (Q-factor), strong noise immunity, compact size, and low cost. Notably, its resonant characteristics significantly enhance system signal strength. Two spectroscopic techniques based on QTF detection, Quartz-enhanced photoacoustic spectroscopy (QEPAS) and light-induced thermoelastic spectroscopy (LITES), are currently research hotspots in the field of spectral sensing. This paper provides a comprehensive and detailed review and highlights…

• HP
  Heilongjiang Postdoctoral Science Foundation

  Award: LBH-Z23144, LBH-Z24155
• NN
  National Natural Science Foundation of China

  Award: 62335006, 62275065, 62022032, 62405078
• CP
  China Postdoctoral Science Foundation

  Award: 2024M764172
• NS
  Natural Science Foundation of Heilongjiang Province

  Award: LH2024F031