Überblick Statistik: Seitenaufrufe (grau) und PDF-Downloads (blau)

Split-Aperture Xolography – Linear Volumetric Photoactivation with Short Axial Dimension and Low out of Focus Excitation

  • Spatially confined photo-excitation with the lowest possible activation of the remaining volume is of central importance for high-resolution high-density optical data storage, fluorescence microscopy, 3D-lithography, and 3D-printing. Two-photon absorption (2PA) enables such applications yet leads to slow processing speed due to the underlying non-linear absorption process. Here, Split-Aperture Xolography (SAX), is introduced which uses stepwise excitation of dual-color responsive molecules to initiate a linear volumetric photo-reaction process that is up to several orders of magnitude more efficient than 2PA. The capabilities of SAX are investigated in a scenario study for focusing systems with high numerical aperture (NA) using a Python implementation of vectorial diffraction theory. The intersecting half-cones generated by the split illuminated entrance aperture of the objective reduce the axial focal spot size of the activation distribution by up to a factor of two compared to 2PA targeting the same electronic transition. A steep average decline of the activation probability with the fifth power away from focus is found for a wide range of directions. This is significantly better in comparison to 2PA and prevents that undesired out-of-focus excitation events sum-up with subsequent irradiations. This approach is expected to be advantageous for volumetric methods at the nanoscale.

Download full text files

Export metadata

Additional Services

Search Google Scholar
Metadaten
URN:urn:nbn:de:kobv:526-opus4-20749
Publisher DOI:https://doi.org/10.1002/advs.202416105
Author:Martin RegehlyORCiDGND, Stefan HechtORCiD
Parent Title (English):Advanced Science
Document Type:Article
Language:English
Year of Publication:2025
Volume:12
Issue:31
Article Number:e16105
Publisher:Wiley
Faculties an central facilities:Fachbereich Ingenieur- und Naturwissenschaften
Publishing Institution:Technische Hochschule Wildau
Tag:photoswitch; split-aperture xolography; two-photon absorption; vectorial diffraction; volumetric 3D printing
Source:M. Regehly, S. Hecht, Split-Aperture Xolography – Linear Volumetric Photoactivation with Short Axial Dimension and Low out of Focus Excitation. Adv. Sci. 2025, 12, e16105. https://doi.org/10.1002/advs.202416105
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 535 Licht, Infrarot- und Ultraviolettphänomene
6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 621 Angewandte Physik
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International
Release Date:2025/09/09
Verstanden ✔
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.