Skip to main content
Vai all'homepage della Commissione europea (si apre in una nuova finestra)
italiano it
CORDIS - Risultati della ricerca dell’UE
CORDIS
Contenuto archiviato il 2024-06-18

Harnessing attosecond nonlinear optics for controlling and enhancing high harmonic generation and producing useful coherent x-rays on a tabletop

Obiettivo

Attosecond nonlinear optics will be harnessed for increasing the efficiency and tunability of laser-driven x-rays through high harmonics generation. The process of high harmonic generation, which converts visible laser light into laser-like x-rays, facilitates new directions in science and technology. Examples include the production of attosecond pulses of light that allows direct investigation of the motions of electrons in atoms, molecules, and materials as well as the compact generation of x-rays for nano and bio imaging. However, for most applications, the generation of usable flux is, to date, limited to relatively long wavelengths (>10 nm) in which the upconversion process is rather benign and can be fully phase matched. At the foundation of this proposal are all-optical quasi-phase matching techniques, recently pioneered by the author during his post-doc in USA, which allows the holographic creation of nonlinear structures in the high harmonic generation process. Similarly to photonic structures for visible light, the optically induced nonlinear structures can be used for manipulating and enhancing the generated x-rays. New quasi-phase matching techniques will be developed and implemented for generating harmonics at 10-1 nm with high flux. Periodic structure with periodicity that varies according to the phase matching conditions of a given harmonic order will be used for generating coherent quasi-monochromatic x-rays while stochastic structures will be exploited for generating wideband x-rays. Longitudinally chirped periodic structures will be used for generating sub 100 attosecond pulses while transversely parabolic periodic structures will be exploited for focusing the generated beam at a required distance from the nonlinear medium. The proposed research will have important impact on the generation of compact and bright coherent x-rays for applications in materials and chemical dynamics, nanotechnology, microscopy, biology, and medicine.

Campo scientifico (EuroSciVoc)

Parole chiave

Argomento(i)

Invito a presentare proposte

FP7-PEOPLE-2007-4-3-IRG
Vedi altri progetti per questo bando

Meccanismo di finanziamento

MC-IRG - International Re-integration Grants (IRG)

Coordinatore

TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY
Contributo UE
€ 100 000,00
Costo totale
Nessun dato