Spatially and spectrally resolved quantum path interference with chirped driving pulses
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10334362" target="_blank" >RIV/00216208:11320/16:10334362 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1088/1367-2630/aa511f" target="_blank" >http://dx.doi.org/10.1088/1367-2630/aa511f</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1367-2630/aa511f" target="_blank" >10.1088/1367-2630/aa511f</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Spatially and spectrally resolved quantum path interference with chirped driving pulses
Popis výsledku v původním jazyce
Wemeasure spectrally and spatially resolved high-order harmonics generated in argon using chirped multi-cycle laser pulses. Using a stable, high-repetition rate laser we observe detailed interference structures in the far-field. The structures are of two kinds; off-axis interference from the long trajectory only and on-axis interference including the short and long trajectories. The former is readily visible in the far-field spectrum, modulating both the spectral and spatial profile. To access the latter, we vary the chirp of the fundamental, imparting different phases on the different trajectories, thereby changing their relative phase. Using this method together with an analytical model, we are able to explain the on-axis behaviour and access the dipole phase parameters for the short (as) and long (al) trajectories. The extracted results compare very well with phase parameters calculated by solving the time-dependent Schrödinger equation. Going beyond the analytical model, we are also able to successfully reproduce the off-axis interference structure.
Název v anglickém jazyce
Spatially and spectrally resolved quantum path interference with chirped driving pulses
Popis výsledku anglicky
Wemeasure spectrally and spatially resolved high-order harmonics generated in argon using chirped multi-cycle laser pulses. Using a stable, high-repetition rate laser we observe detailed interference structures in the far-field. The structures are of two kinds; off-axis interference from the long trajectory only and on-axis interference including the short and long trajectories. The former is readily visible in the far-field spectrum, modulating both the spectral and spatial profile. To access the latter, we vary the chirp of the fundamental, imparting different phases on the different trajectories, thereby changing their relative phase. Using this method together with an analytical model, we are able to explain the on-axis behaviour and access the dipole phase parameters for the short (as) and long (al) trajectories. The extracted results compare very well with phase parameters calculated by solving the time-dependent Schrödinger equation. Going beyond the analytical model, we are also able to successfully reproduce the off-axis interference structure.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BG - Jaderná, atomová a molekulová fyzika, urychlovače
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
New Journal of Physics
ISSN
1367-2630
e-ISSN
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Svazek periodika
18
Číslo periodika v rámci svazku
23 December 2016
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
17
Strana od-do
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Kód UT WoS článku
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EID výsledku v databázi Scopus
2-s2.0-85007578539