Intrapulse x-ray parametric amplification in high-order-harmonic generation
We demonstrate strong-field-driven impulsive XUV-x-ray parametric amplification (IXPA) processes in high-order harmonic generation at the single-atom level by using ab initio calculations. We consider the example of Li+ ions exposed simultaneously to an intense IR pulse and a weak 200-as XUV-x-ray p...
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/89931 |
| Acceso en línea: | https://hdl.handle.net/2117/89931 https://dx.doi.org/10.1103/PhysRevA.93.063415 |
| Access Level: | acceso abierto |
| Palabra clave: | Laser pulses, Ultrashort Attosecond light-pulses Extreme-ultraviolet Laser fields Emission Làsers d'impulsos ultracurts Harmònics (Ones elèctriques) Àrees temàtiques de la UPC::Física |
| Sumario: | We demonstrate strong-field-driven impulsive XUV-x-ray parametric amplification (IXPA) processes in high-order harmonic generation at the single-atom level by using ab initio calculations. We consider the example of Li+ ions exposed simultaneously to an intense IR pulse and a weak 200-as XUV-x-ray pulse with central photon energies varying from 90 to 400 eV. We determine optimal parameter ranges and the precise delays between the IR and the XUV-x-ray pulses for IXPA to occur. The present results might be a guide to achieve exponential growth of the XUV-x-ray signal in tabletop XUV-x-ray lasers. |
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