2026-09-16T03:45:25Zhttps://gredos.usal.es/oai/requestoai:gredos.usal.es:10366/1471922025-04-30T20:35:10Zcom_10366_133237com_10366_4512com_10366_3823col_10366_133238
Controlling the polarization and vortex charge of attosecond high-harmonic beams via simultaneous spin–orbit momentum conservation
Dorney, Kevin M.
Rego Cabezas, Laura
Brooks, Nathan J.
San Román Álvarez de Lara, Julio
Liao, Chen-Ting
Ellis, Jennifer L.
Zusin, Dmitriy
Gentry, Christian
Nguyen, Quynh L.
Shaw, Justin M.
Picón, Antonio
Plaja Rustein, Luis
Kapteyn, Henry C.
Murnane, Margaret M.
Hernández García, Carlos
High-harmonic generation
Nonlinear optics
Ultrafast lasers
Ultrafast photonics
[EN]Optical interactions are governed by both spin and angular momentum conservation laws, which serve as a tool for controlling light–matter interactions or elucidating electron dynamics and structure of complex systems. Here, we uncover a form of simultaneous spin and orbital angular momentum conservation and show, theoretically and experimentally, that this phenomenon allows for unprecedented control over the divergence and polarization of extreme-ultraviolet vortex beams. High harmonics with spin and orbital angular momenta are produced, opening a novel regime of angular momentum conservation that allows for manipulation of the polarization of attosecond pulses—from linear to circular—and for the generation of circularly polarized vortices with tailored orbital angular momentum, including harmonic vortices with the same topological charge as the driving laser beam. Our work paves the way to ultrafast studies of chiral systems using high-harmonic beams with designer spin and orbital angular momentum.
2021-10-01
2021-10-01
2019-02
info:eu-repo/semantics/article
Dorney, K.M., Rego, L., Brooks, N.J. et al. (2019). Controlling the polarization and vortex charge of attosecond high-harmonic beams via simultaneous spin–orbit momentum conservation. Nature Photon 13, 123–130. https://doi.org/10.1038/s41566-018-0304-3
1749-4885
http://hdl.handle.net/10366/147192
10.1038/s41566-018-0304-3
1749-4893
eng
https://doi.org/10.1038/s41566-018-0304-3
Department of Energy BES Award No. DE-FG02–99ER14982
Air Force Office of Scientific Research under Award No. FA9550–16–1–0121
National Science Foundation Graduate Research Fellowships (Grant No. DGE-1144083)
Junta de Castilla y León (SA046U16)
Ministerio de Economía y Competitividad (FIS2013–44174-P, FIS2016–75652-P)
2017 Leonardo Grant for Researchers and Cultural Creators, BBVA Foundation
Ministerio de Educación, Cultura y Deporte (FPU16/02591)
Marie Sklodowska-Curie Grant, Agreement No. 702565
info:eu-repo/semantics/openAccess