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| DOI | Resolve DOI: https://doi.org/10.1038/s41467-021-23999-9 |
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| Author | Search for: Heinrich, TobiasORCID identifier: https://orcid.org/0000-0002-0238-7451; Search for: Taucer, Marco1; Search for: Kfir, OferORCID identifier: https://orcid.org/0000-0003-1253-9372; Search for: Corkum, P. B.1; Search for: Staudte, André1ORCID identifier: https://orcid.org/0000-0002-8284-3831; Search for: Ropers, Claus; Search for: Sivis, MuratORCID identifier: https://orcid.org/0000-0002-1367-6072 |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Format | Text, Article |
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| Subject | high harmonic generation; nonlinear optics; surfaces, interfaces and thin films |
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| Abstract | Strong-field methods in solids enable new strategies for ultrafast nonlinear spectroscopy and provide all-optical insights into the electronic properties of condensed matter in reciprocal and real space. Additionally, solid-state media offers unprecedented possibilities to control high-harmonic generation using modified targets or tailored excitation fields. Here we merge these important points and demonstrate circularly-polarized high-harmonic generation with polarization-matched excitation fields for spectroscopy of chiral electronic properties at surfaces. The sensitivity of our approach is demonstrated for structural helicity and termination-mediated ferromagnetic order at the surface of silicon-dioxide and magnesium oxide, respectively. Circularly polarized radiation emanating from a solid sample now allows to add basic symmetry properties as chirality to the arsenal of strong-field spectroscopy in solids. Together with its inherent temporal (femtosecond) resolution and non-resonant broadband spectrum, the polarization control of high harmonics from condensed matter can illuminate ultrafast and strong field dynamics of surfaces, buried layers or thin films. |
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| Publication date | 2021-06-17 |
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| Publisher | Nature Research |
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| Licence | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | bd6759cf-1bfc-40bb-9646-ab829ebe0ef0 |
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| Record created | 2021-08-11 |
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| Record modified | 2021-08-11 |
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