Generation of high-order harmonics with controllable elliptical polarization

Avner Fleischer*, Pavel Sidorenko, Oren Cohen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


We propose and numerically demonstrate a method for obtaining high-harmonic radiation with desirable elliptical polarization. Atoms are shined by a combination of a strong linearly-polarized laser field and an additional weak field, which is elliptically polarized in a plane perpendicular to the polarization direction of the strong field. The strong driver ionizes and recollides electrons with their parent ion, while the weak field perturbatively drives the electrons away from "head-on" collision. Upon recombination, new elliptically polarized harmonics with same ellipticity as the weak driver are emitted at efficiency which linearly depends on the intensity of the weak beam, but is independent of its elilipticity.

Original languageEnglish
Pages (from-to)223-225
Number of pages3
JournalOptics Letters
Issue number2
StatePublished - 15 Jan 2013
Externally publishedYes


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