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Microfabrication of Implantable Optics Integrated in a Microstructured Imaging Window for Advanced In Vivo Imaging

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PortGISANS: nested mirror optics for a portable GISANS adapter.

Filip Mehler¹, Sebastian Jaksch², Marité Cárdenas³

¹Department for Physics and Astronomy, Uppsala University, 752 37, Uppsala, Sweden. Filip.mehler@physics.uu.se.

Scientific Reports

|November 21, 2025

Summary

This summary is machine-generated.

Grazing-incidence neutron scattering (GISANS) is enhanced by new focusing optics, significantly increasing flux for surface science studies. This breakthrough enables easier experiments on liquid surfaces and buried structures.

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Area of Science:

Surface science
Neutron scattering physics
Soft-matter characterization

Background:

Grazing-incidence scattering techniques are vital for surface science.
Grazing-incidence neutron scattering (GISANS) offers unique insights into soft-matter and magnetic structures, even beneath surfaces.
Limited neutron source brilliance restricts widespread GISANS application.

Purpose of the Study:

To present novel focusing nested mirror optics to enhance GISANS capabilities.
To improve the flux and accessibility of GISANS beamlines.
To enable straightforward experiments on free liquid surfaces.

Main Methods:

Development and implementation of focusing nested mirror optics.
Combination of ray tracing simulations and distorted wave Born approximation.
Characterization of the optics' impact on lateral and out-of-plane resolution.

Main Results:

The developed optics increase GISANS flux by at least one order of magnitude.
Lateral resolution along the interface is preserved.
Depth-resolution is relaxed, while out-of-plane resolution is adjusted.
Enabled straightforward experiments on free liquid surfaces.

Conclusions:

The focusing nested mirror optics significantly boost GISANS capabilities.
This portable and easy-to-install device makes GISANS more accessible.
The enhanced flux and simplified experimental setup open new avenues for surface and interface studies.