Doppler-free multiphoton absorption in icosahedral molecules

David L. Andrews, Kevin P. Hopkins

Research output: Contribution to journalArticlepeer-review

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Abstract

It is shown that with counter-propagating laser beams of identical circular polarisation, symmetry-preserving transitions in icosahedral molecules produce totally Doppler-free lines in two-photon and four-photon absorption spectra. In the four-photon case, this feature cannot occur for molecules of any other symmetry, and therefore characterises an icosahedral species.
Original languageEnglish
Pages (from-to)37-40
Number of pages4
JournalChemical Physics Letters
Volume146
Issue number1-2
DOIs
Publication statusPublished - 1 Apr 1988

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