Inelastic ponderomotive scattering of electrons at a high-intensity optical travelling wave in vacuum

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10376657" target="_blank" >RIV/00216208:11320/18:10376657 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1038/NPHYS4282" target="_blank" >https://doi.org/10.1038/NPHYS4282</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/NPHYS4282" target="_blank" >10.1038/NPHYS4282</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Inelastic ponderomotive scattering of electrons at a high-intensity optical travelling wave in vacuum

Popis výsledku v původním jazyce

In the early days of quantum mechanics Kapitza and Dirac predicted that matter waves would scatter off the optical intensity grating formed by two counter-propagating light waves(1). This interaction, driven by the ponderomotive potential of the optical standing wave, was both studied theoretically and demonstrated experimentally for atoms(2) and electrons(3-5). In the original version of the experiment(1,5), only the transverse momentum of particles was varied, but their energy and longitudinal momentum remained unchanged after the interaction. Here, we report on the generalization of the Kapitza-Dirac effect. We demonstrate that the energy of sub-relativistic electrons is strongly modulated on the few-femtosecond timescale via the interaction with a travelling wave created in vacuum by two colliding laser pulses at different frequencies. This effect extends the possibilities of temporal control of freely propagating particles with coherent light and can serve the attosecond ballistic bunching of electrons(6), or for the acceleration of neutral atoms or molecules by light.

Název v anglickém jazyce

Inelastic ponderomotive scattering of electrons at a high-intensity optical travelling wave in vacuum

Popis výsledku anglicky

In the early days of quantum mechanics Kapitza and Dirac predicted that matter waves would scatter off the optical intensity grating formed by two counter-propagating light waves(1). This interaction, driven by the ponderomotive potential of the optical standing wave, was both studied theoretically and demonstrated experimentally for atoms(2) and electrons(3-5). In the original version of the experiment(1,5), only the transverse momentum of particles was varied, but their energy and longitudinal momentum remained unchanged after the interaction. Here, we report on the generalization of the Kapitza-Dirac effect. We demonstrate that the energy of sub-relativistic electrons is strongly modulated on the few-femtosecond timescale via the interaction with a travelling wave created in vacuum by two colliding laser pulses at different frequencies. This effect extends the possibilities of temporal control of freely propagating particles with coherent light and can serve the attosecond ballistic bunching of electrons(6), or for the acceleration of neutral atoms or molecules by light.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nature Physics

ISSN

1745-2473

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

121-125

Kód UT WoS článku

000423846600016

EID výsledku v databázi Scopus

2-s2.0-85041673175