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Related Experiment Video

Updated: Jun 18, 2026

$Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene$

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

Diffractive wavefront correction for Fe L-edge spectroscopy on the meV scale.

Christoph Braig¹, Andrey Sokolov², Frank Siewert²

¹Institute for Applied Photonics eV, Rudower Chaussee 29/31, 12489 Berlin, Germany.

Journal of Synchrotron Radiation

|June 16, 2026

Summary

This summary is machine-generated.

We developed a new instrument for high-resolution soft X-ray spectroscopy, achieving 12-15 meV energy resolution using a novel reflection zone plate. This advancement benefits large-scale facilities like synchrotron radiation sources and free-electron lasers.

Keywords:

X-ray spectroscopy diffractive optics reflection zone plates wavefront correction

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Published on: May 10, 2021

Area of Science:

Physics
Spectroscopy
Optics

Background:

High-resolution soft X-ray spectroscopy is crucial for materials science and physics.
Existing instruments face limitations in energy resolution and photon throughput.

Purpose of the Study:

To propose and simulate a novel wavelength-dispersive instrument for high-resolution soft X-ray spectroscopy.
To achieve an energy resolution of 12-15 meV at large-scale facilities.

Main Methods:

Utilizing a wavefront-corrected reflection zone plate (RZP) with a large aperture (40mm x 190mm) on a spherical Si substrate.
Employing a two-dimensional, adapted grating groove distribution to compensate for surface waviness.
Simulating performance at the Fe L-edge (700-730 eV).

Main Results:

Achieved an energy resolution of 12-15 meV in simulations.
Demonstrated precise control of tangential slope error (±0.1 arcsec) and deformation (±6.1 nm).
The RZP design collimates the diffracted beam to a 40mm focal line, minimizing photon loss and maximizing signal transmission.

Conclusions:

The proposed instrument enables unprecedented energy resolution in soft X-ray spectroscopy.
The RZP design offers high efficiency and broad signal acceptance, enhancing capabilities at synchrotron and free-electron laser facilities.