Two photon absorption and coherent control with broadband down-converted light

Barak Dayan, Avi Pe'er, Asher A. Friesem, Yaron Silberberg

Research output: Contribution to journalArticlepeer-review

216 Scopus citations


The two-photon absorption in rubidium was investigated with broadband down-converted light. The pulse-shaping methods were used to control two-photon absorption, which demonstrated that the spectral and temporal resolutions were 3-5 orders of magnitude below the actual bandwidth and temporal duration of the light. The pulse shaper separates the spectral components of the beam and ultilizes a computer controlled spatial light modulator (SLM) to introduce desired spectral phase filter to the light. It was found that the broadband down-converted light induced two-photon absorption with the same sharp temporal behavior as femtosecond pulses.

Original languageEnglish
Article number023005
Pages (from-to)023005-1-023005-4
JournalPhysical Review Letters
Issue number2
StatePublished - 9 Jul 2004
Externally publishedYes


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