Determination of the spectral variation origin in high-order harmonic generation in noble gases

0501475 - FZÚ 2019 RIV US eng J - Journal Article
Nefedova, Victoria - Ciappina, Marcelo F. - Finke, Ondřej - Albrecht, Martin - Vábek, Jan - Kozlová, Michaela - Suárez, N. - Pisanty, E. - Lewenstein, M. - Nejdl, Jaroslav
Determination of the spectral variation origin in high-order harmonic generation in noble gases.
Physical Review A. Roč. 98, č. 3 (2018), s. 1-10, č. článku 033414. ISSN 2469-9926. E-ISSN 2469-9934
R&D Projects: GA MŠMT LQ1606
Institutional support: RVO:68378271
Keywords : attosecond pulses * phase * ionization * atoms * laser * polarization * emission * dynamics * regime
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 2.907, year: 2018

One key parameter in the high-order harmonic generation (HHG) phenomenon is the exact frequency of the generated harmonic field. Its deviation from perfect harmonics of the laser frequency can be explained by considering (i) the single-atom laser-matter interaction and (ii) the spectral changes of the driving laser. In this work, we perform an experimental and theoretical study of the causes that generate spectral changes in the HHG radiation.

Permanent Link: http://hdl.handle.net/11104/0293500