학술논문
Control of the polarization of attosecond pulses using a two-color field.
Document Type
Article
Author
Source
Subject
*POLARIZED beams (Nuclear physics)
*POLARIZATION (Nuclear physics)
*HELICITY of nuclear particles
*ELECTRONIC pulse techniques
*SYNCHROTRON radiation
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Language
ISSN
1367-2630
Abstract
Control over the polarization of an attosecond pulse train (APT) is demonstrated theoretically using orthogonally polarized two-color fields. The carrier envelope phase of the two pulses is used as a control parameter to generate both an APT with linear polarization in two nearly perpendicular planes or a train of elliptically polarized pulses of alternating helicity. By using few-cycle driving laser fields an isolated attosecond pulse with elliptical polarization is shown to be generated after selecting the cut-off region of the harmonic spectrum. The control mechanism is explained in terms of classical trajectories. [ABSTRACT FROM AUTHOR]