High Harmonics and Isolated Attosecond Pulses from MgO
Fecha
2021-01-08Autor
Nourbakhsh, Zahra
Tancogne-Dejean, Nicolas
Merdji, Hamed
Rubio Secades, Angel
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Physical Review Applied 15(1) : (2021) // Article ID 014013
Resumen
On the basis of real-time ab initio calculations, we study the nonperturbative interaction of two-color laser pulses with MgO crystal in the strong-field regime to generate isolated attosecond pulses from high-harmonic emissions from MgO crystal. In this regard, we examine the impact of the characteristics of the incident pules, such as its shape, intensity, and ellipticity, as well as the consequences of the crystal anisotropy on the emitted harmonics and their corresponding isolated attosecond pulses. Our calculations predict the creation of isolated attosecond pulses with a duration of approximately 300 as; in addition, using elliptical driving pulses, we show the generation of elliptical isolated attosecond pulses. Our work prepares the path for all-solid-state compact optical devices offering perspectives beyond traditional isolated attosecond pulses emitted from atoms.