Multiple attenuated total reflection

{
  "id": "MLC-T-CHM-007653",
  "term": "Multiple attenuated total reflection",
  "field": "Chemistry",
  "definition": "An optical technique where an infrared beam undergoes several internal reflections within a crystal, interacting with a sample placed on its surface at each reflection. This increases the effective path length of the evanescent wave within the sample, enhancing the sensitivity of the measurement. It is commonly used in Fourier transform infrared spectroscopy for analyzing opaque or highly absorbing materials.",
  "synonyms": [
    "frustrated multiple internal reflection (FMIR)",
    "multiple internal reflection (MIR)"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "attenuated total reflection"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 667 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/multiple-attenuated-total-reflection/"
}