Self-probed ptychography from semiconductor high-harmonic generation
Abstract
We demonstrate a method to image an object using a self-probing approach based on semiconductor high-harmonic generation. On one hand, ptychography enables high-resolution imaging from the coherent light diffracted by an object. On the other hand, high-harmonic generation from crystals is emerging as a new source of extreme-ultraviolet ultrafast coherent light. We combine these two techniques by performing ptychography measurements with nano-patterned crystals serving as the object as well as the generation medium of the harmonics. We demonstrate that this strong field in situ approach can provide structural information about the object. With the future developments of crystal high harmonics as a compact short-wavelength light source, our demonstration can be an innovative approach for nanoscale imaging of photonic and electronic devices in research and industry.
Cite
@article{arxiv.2206.08333,
title = {Self-probed ptychography from semiconductor high-harmonic generation},
author = {Sven Fröhlich and Xu Liu and Aimrane Hamdou and Alric Meunier and Mukhtar Hussain and Mathieu Carole and Shatha Kaassamani and Marie Froidevaux and Laure Lavoute and Dmitry Gaponov and Nicolas Ducros and Sebastien Fevrier and Philippe Zeitoun and Milutin Kovacev and Marta Fajardo and Willem Boutu and David Gauthier and Hamed Merdji},
journal= {arXiv preprint arXiv:2206.08333},
year = {2022}
}