Preferred Label : biphotonic excitation;
IUPAC definition : Simultaneous (coherent) absorption of two photons (either same or different wavelength),
the energy of excitation being the sum of the energies of the two photons. Also called
two-photon excitation.;
Scope note : this term is sometimes also used for a two-step absorption.;
Origin ID : B00668;
See also
Simultaneous (coherent) absorption of two photons (either same or different wavelength),
the energy of excitation being the sum of the energies of the two photons. Also called
two-photon excitation.
