Non-linear optical techniques

{
  "id": "MLC-T-CHM-008039",
  "term": "Non-linear optical techniques",
  "field": "Chemistry",
  "definition": "Experimental methods that exploit the non-linear response of materials to intense light, typically from lasers, to probe molecular properties or generate new light frequencies. These techniques provide information not accessible through linear optical methods, such as molecular symmetry or ultrafast dynamics. Examples include coherent anti-Stokes Raman scattering (CARS) and two-photon absorption spectroscopy.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "anti",
    "hole burning",
    "inversion",
    "isotropic",
    "mode",
    "polarization",
    "sequence",
    "stokes"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 374 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/non-linear-optical-techniques/"
}