21–26 Jun 2026
U. Ottawa - Learning Crossroads (CRX) Building
America/Toronto timezone
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Using nanostructured dielectric surfaces for the generation of nano-focused XUV radiation

Not scheduled
15m
U. Ottawa - Learning Crossroads (CRX) Building

U. Ottawa - Learning Crossroads (CRX) Building

100 Louis-Pasteur Private, Ottawa, ON K1N 9N3
Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) (DCMMP) M2-12 | (DPMCM)

Speaker

Parnia Bastani

Description

We introduce an active XUV optical element that simultaneously generates and focuses isolated XUV light to the nanoscale. By illuminating an MgO nanostructured surface with an 800 nm femtosecond laser in transmission, we achieve coherent XUV generation and tight focusing (NA ≈ 0.35). However, IR contamination hampers applications. We suppress it by using p-polarized light at Brewster’s angle and optimizing MgO nanofabrication. Our method overcomes XUV optics limits, aiming for <100 nm focal
spots for high-resolution imaging, laser writing, and photoelectron applications.

Keyword-1 XUV
Keyword-2 High Harmonic Generation
Keyword-3 Zone plates

Author

Parnia Bastani

Co-authors

Dr Aleksey Korobenko Dr Vedran Jelic Dr katarzyna Kowalczyk Dr David. N Purschke Dr Shima Gholam Mirzaeimoghadar Dr Md Wazedur Rahman Dr Mathieu de Lafontaine Dr Andre Staudte Dr Paul. B Corkum Prof. Francois Legare Dr Giulio Vampa

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