On the matrix element for two-photon absorption
- 11 July 1975
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 8 (10) , L170-L172
- https://doi.org/10.1088/0022-3700/8/10/002
Abstract
The matrix element for two-photon absorption by atoms and molecules is obtained from different forms of the interaction Hamiltonian. The use of the minimal coupling, multipolar and space-translated interaction energies are compared and terms arising from higher multipoles are discussed.Keywords
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