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physics.optics2025
Attosecond high-harmonic interferometry probes orbital- and band-dependent dipole phase in magnesium oxide
Nataliia Kuzkova, Pieter J. van Essen, Brian de Keijzer +3
Control over the spatial coherence, wavefront, and focusability of emitted light relies on understanding the intrinsic phase of the emission process, and vice versa, measuring phas…
physics.optics2024
Breaking Abbe's diffraction limit with harmonic deactivation microscopy
Kevin Murzyn, Maarten L. S. van der Geest, Leo Guery +4
Nonlinear optical microscopy provides elegant means for label-free imaging of biological samples and condensed matter systems. The widespread areas of application could even be inc…
physics.optics2024
Spatial polarization gating of high-harmonic generation in solids
Pieter J. van Essen, Brian de Keijzer, Tanya van Horen +4
High-harmonic generation from solids can be utilized as probe of ultrafast dynamics, but thus far only over extended sample areas, since its spatial resolution is diffraction-limit…