Work

Isolated Attosecond Pulse Generation by Two-Mid-IR Laser Fields

Year: 2011

Type: article

Abstract: The availability of tunable mid-infrared laser systems capable to deliver high intensity few cycle pulses offers the perspective of generating ultrashort radiation in the extreme UV range through the high-order harmonic generation (HHG) of the fundamental. In particular, such systems make possible the superposition of multiple colors of incommensurable frequencies that gives rise to time gating of HHG, thereby realizing the necessary condition leading to isolated attosecond pulse (IAP) generation. In this paper, the HHG resulting from the superposition of two incommensurable frequencies is analyzed with the aim to find out the conditions that the relative intensity and frequency of the two fields have to fulfill in order to generate isolated attosecond pulses. It is observed that the two fields can be superimposed in parallel and perpendicular polarization, both giving rise to IAP under appropriate conditions.

Source: IEEE Journal of Selected Topics in Quantum Electronics

DOI: 10.1109/jstqe.2011.2118193

Authors: V. Tosa, C. Altucci, K. Kovacs, M. Negro, S. Stagira, C. Vozzi, C. Velotta

Institutions: National Institute for Research and Development of Isotopic and Molecular Technologies, University of Naples Federico II, Politecnico di Milano, National Research Council

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2017435753

FWCI: 1.478

Cites: 37

Cited by: 23

Related to: 10