High-order harmonic generation driven by inhomogeneous plasmonics fields spatially bounded: influence on the cut-off law

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00501238" target="_blank" >RIV/68378271:_____/18:00501238 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/2040-8986/aaa6f7" target="_blank" >http://dx.doi.org/10.1088/2040-8986/aaa6f7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/2040-8986/aaa6f7" target="_blank" >10.1088/2040-8986/aaa6f7</a>

Result language

angličtina

Original language name

High-order harmonic generation driven by inhomogeneous plasmonics fields spatially bounded: influence on the cut-off law

Original language description

We study high-order harmonic generation (HHG) in model atoms driven by plasmonic-enhanced fields. These fields result from the illumination of plasmonic nanostructures by few-cycle laser pulses. We demonstrate that the spatial inhomogeneous character of the laser electric field, in a form of Gaussian-shaped functions, leads to an unexpected relationship between the HHG cutoff and the laser wavelength. Precise description of the spatial form of the plasmonic-enhanced field allows us to predict this relationship. We combine the numerical solutions of the time-dependent Schrodinger equation (TDSE) with the plasmonic-enhanced electric fields obtained from 3D finite element simulations. We additionally employ classical simulations to supplement the TDSE outcomes and characterize the extended HHG spectra by means of their associated electron trajectories.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Journal of Optics

ISSN

2040-8978

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

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UT code for WoS article

000423610900001

EID of the result in the Scopus database

2-s2.0-85043517393