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Ultrafast nanoscopy by deactivated high-harmonic generation from solids
Ultrafast nanoscopy by deactivated high-harmonic generation from solids
Attosecond, atomic-scale movies remain a long-standing goal, with applications ranging from metamaterials to strongly correlated materials. We introduce HADES (Harmonic Deactivation Microscopy), a concept that confines solid-state high-harmonic generation well below the diffraction limit using an orbital-angular-momentum prepulse. HADES exploits a generalized quantum-optical mechanism that selectively suppresses or enhances harmonic emission by interfering hidden photon pathways, enabling near-unity control over nonlinear light generation. This approach paves the way for all-optical, label-free super-resolution nanoscopy and unprecedented control of light–matter interactions, with the potential to image ultrafast dynamics at nanometer spatial and attosecond temporal scales.}
Date & Time
28 July 2026
06:00 AM
Peter Kraus is Group Leader of the High-Harmonic Generation and EUV Science group at ARCNL, Associate Professor of Physics at the Vrije Universiteit Amsterdam, and Head of the Metrology Department at ARCNL. His research develops extreme-ultraviolet sources from gas and solid-state high-harmonic generation for ultrafast spectroscopy and nanoscale metrology. Before joining ARCNL in 2018, he worked at the University of California, Berkeley, after earning his PhD from ETH Zurich. He has received multiple grants, amongst which are an European Research Council Starting Grant, two ERC Proof of Concept Grants, as well as the Dutch NWO Veni and VIDI grants.
Attosecond, atomic-scale movies remain a long-standing goal, with applications ranging from metamaterials to strongly correlated materials. We introduce HADES (Harmonic Deactivation Microscopy), a concept that confines solid-state high-harmonic generation well below the diffraction limit using an orbital-angular-momentum prepulse. HADES exploits a generalized quantum-optical mechanism that selectively suppresses or enhances harmonic emission by interfering hidden photon pathways, enabling near-unity control over nonlinear light generation. This approach paves the way for all-optical, label-free super-resolution nanoscopy and unprecedented control of light–matter interactions, with the potential to image ultrafast dynamics at nanometer spatial and attosecond temporal scales.}
Date & Time
28 July 2026
06:00 AM
28 July 2026
06:00 AM
Peter Kraus is Group Leader of the High-Harmonic Generation and EUV Science group at ARCNL, Associate Professor of Physics at the Vrije Universiteit Amsterdam, and Head of the Metrology Department at ARCNL. His research develops extreme-ultraviolet sources from gas and solid-state high-harmonic generation for ultrafast spectroscopy and nanoscale metrology. Before joining ARCNL in 2018, he worked at the University of California, Berkeley, after earning his PhD from ETH Zurich. He has received multiple grants, amongst which are an European Research Council Starting Grant, two ERC Proof of Concept Grants, as well as the Dutch NWO Veni and VIDI grants.
Presenter:
Presenter:
Peter Kraus
Peter Kraus
Head of Metrology Department | Advanced Research Center for Nanolithography (ARCNL)
Head of Metrology Department | Advanced Research Center for Nanolithography (ARCNL)