Photoselection

Term · Chemistry · MLC-T-CHM-008922

The preferential excitation of molecules with specific orientations by polarized light. When a sample is irradiated with linearly polarized light, molecules whose absorption dipoles are aligned with the electric vector of the light are more likely to absorb photons. This leads to an anisotropic distribution of excited states, which can be probed by measuring the polarization of emitted fluorescence or other spectroscopic signals.

Table 1. Record
Identifier	MLC-T-CHM-008922
Field	Chemistry
Subject	Organic and Biomolecular Chemistry
References	PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 399 (https://doi.org/10.1351/pac200779030293)
See also	Anisotropy; Uniaxial sample

Record as JSON

{
  "id": "MLC-T-CHM-008922",
  "term": "Photoselection",
  "field": "Chemistry",
  "definition": "The preferential excitation of molecules with specific orientations by polarized light. When a sample is irradiated with linearly polarized light, molecules whose absorption dipoles are aligned with the electric vector of the light are more likely to absorb photons. This leads to an anisotropic distribution of excited states, which can be probed by measuring the polarization of emitted fluorescence or other spectroscopic signals.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "anisotropy",
    "uniaxial sample"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 399 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/photoselection/"
}

Record 9,477 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.