@inproceedings{4af856a506814ad8a803ac83c8c2cd5e,
title = "Controlling polarization of attosecond pulses with plasmonic-enhanced bichromatic counter-rotating circularly polarized fields",
abstract = "For a variety of spectroscopic methods, control over the polarization of attosecond pulses is necessary to probe chiral-sensitive light-matter interactions [1] at ultrafast time scales. This is a challenge that goes beyond generating individual harmonics of particular polarization [2] , since filtering individual harmonics will lose the sub-femtosecond temporal resolution. In our work, we combine a bichromatic counter-rotating circularly polarized (BiCRCP) driving field with a spatial inhomogeneity. We show that the direction and strength of the plasmonic-enhanced field provides a knob to shape the polarization of attosecond pulses from a High Harmonic Generation (HHG) process [3]. Plasmonic-field-assisted HHG with linear polarisation yields a significant energy enhancement [4] , but relies on the photoelectron trajectory to be (dominantly) parallel to the polarization and inhomogeneity. HHG with BiCRCP driving fields can generate a spectrum consisting of doublets of harmonic orders with alternating helicity [2] , but this requires a three-fold-symmetry which is broken by the plasmonic-enhanced field.",
author = "Ansari, {Irfana N.} and Cornelia Hofmann and Lukas Medisauskas and MacIej Lewenstein and Ciappina, {Marcelo F.} and Gopal DIxit",
note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; null ; Conference date: 21-06-2021 Through 25-06-2021",
year = "2021",
month = jun,
doi = "10.1109/CLEO/Europe-EQEC52157.2021.9542653",
language = "英语",
series = "2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021",
address = "United States",
}