Scattering of charged particles on two spatially separated time-periodic optical fields

Lóránt Zs Szabó, M. Benedict, P. Földi

Research output: Contribution to journalArticle

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Abstract

We consider a monoenergetic beam of moving charged particles interacting with two separated oscillating electric fields. Time-periodic linear potential is assumed to model the light-particle interaction using a nonrelativistic, quantum mechanical description based on Gordon-Volkov states. Applying Floquet theory, we calculate transmission probabilities as a function of the laser field parameters. The transmission resonances in this Ramsey-like setup are interpreted as if they originated from a corresponding static double-potential barrier with heights equal to the ponderomotive potential resulting from the oscillating field. Due to the opening of new "Floquet channels," the resonances are repeated at input energies when the corresponding frequency is shifted by an integer multiple of the exciting frequency. These narrow resonances can be used as precise energy filters. The fine structure of the transmission spectra is determined by the phase difference between the two oscillating light fields, allowing for the optical control of the transmission.

Original languageEnglish
Article number063419
JournalPhysical Review A
Volume96
Issue number6
DOIs
Publication statusPublished - Dec 22 2017

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charged particles
scattering
optical control
particle interactions
integers
fine structure
filters
electric fields
energy
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Scattering of charged particles on two spatially separated time-periodic optical fields. / Szabó, Lóránt Zs; Benedict, M.; Földi, P.

In: Physical Review A, Vol. 96, No. 6, 063419, 22.12.2017.

Research output: Contribution to journalArticle

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