| Download | - View final version: In situ high-harmonic microscopy of a nanostructured solid (PDF, 12.2 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1364/OPTICA.488545 |
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| Author | Search for: Korobenko, Aleksey1ORCID identifier: https://orcid.org/0000-0003-2285-2821; Search for: Rashid, Sabaa; Search for: Naumov, Andrei Yu.1; Search for: Villeneuve, David M.1; Search for: Reis, David A.ORCID identifier: https://orcid.org/0000-0002-1576-7533; Search for: Berini, PierreORCID identifier: https://orcid.org/0000-0002-6795-7275; Search for: Corkum, Paul B.1ORCID identifier: https://orcid.org/0000-0003-3394-5572; Search for: Vampa, Giulio1 |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Funder | Search for: Joint Center for Extreme Photonics; Search for: Defense Threat Reduction Agency; Search for: Air Force Office of Scientific Research; Search for: Natural Sciences and Engineering Research Council of Canada; Search for: W. M. Keck Foundation |
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| Format | Text, Article |
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| Abstract | Nanostructured optical surfaces allow exquisite control over linear and nonlinear light interactions, where the surface actively creates new frequencies up to high-order harmonics of an intense infrared driving laser field. The function and performance of these surfaces depend sensitively on the distribution of the high-harmonic fields in and between the nanostructured elements, as the high-harmonic wavelength becomes comparable to the nanoscale features of the surface. Imaging the nonlinear response at the active surface with nanometer resolution would greatly benefit the optimization of the metasurface's function. Here we demonstrate an approach to lensless imaging of extreme ultraviolet high harmonics that resolves the amplitude and phase of nonlinear polarization at the active nanostructured surface of an MgO crystal. Imaging the near-field distribution of high harmonics is the gateway to optimized functional high-harmonic metasurfaces and the integration of high harmonics on a chip. |
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| Publication date | 2023-05-19 |
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| Publisher | Optica Publishing Group |
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| Copyright statement | - © 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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| Licence | |
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| In | |
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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 | c1cdcc01-9227-4e19-8ad9-bec579f281ef |
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| Record created | 2023-06-15 |
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| Record modified | 2023-06-15 |
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