Johann J. Abel

Soft X-ray imaging with coherence tomography in the water window spectral range using high-harmonic generation

Julius Reinhard, Felix Wiesner, M. Hennecke, Themistoklis P. H. Sidiropoulos et autres

Abstract High-harmonic generation (HHG) is used as a source for various imaging applications in the extreme ultraviolet spectral range. It offers spatially coherent radiation and unique elemental contrast with the potential for attosecond time resolution. The unfavorable efficiency scaling to higher photon …

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Soft X-ray imaging with coherence tomography in the water window spectral range using high-harmonic generation

Julius Reinhard, Felix Wiesner, M. Hennecke, Themistoklis P. H. Sidiropoulos et autres

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Soft X-ray imaging with coherence tomography in the water window spectral range using high-harmonic generation

Julius Reinhard, Felix Wiesner, Themistoklis P. H. Sidiropoulos, M. Hennecke et autres

High-harmonic generation (HHG) is used as a source for various imaging applications in the extreme ultraviolet spectral range. It offers spatially coherent radiation and unique elemental contrast with the potential for attosecond time resolution. The unfavorable efficiency scaling to higher photon energies …

Optical Coherence Tomography of Van Der Waals Heterostructures Using Extreme Ultraviolet Light

Felix Wiesner, Johann J. Abel, Muhammad Hussain, Vipin Krishna et autres

Abstract New experimental methods with high out‐of‐plane spatial sensitivity combined with ultrafast temporal resolution can revolutionize the understanding of charge‐ and heat‐transfer dynamics occurring at interfaces. In this work, a step forward is taken in this direction by applying coherence tomography with …

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Non-destructive depth reconstruction of Al-Al2Cu layer structure with nanometer resolution using extreme ultraviolet coherence tomography

Johann J. Abel, Jonathan Apell, Felix Wiesner, Julius Reinhard et autres

Non-destructive cross-sectional characterization of materials systems with a resolution in the nanometer range and the ability to allow for time-resolved in-situ studies is of great importance in material science. Here, we present such a measurements method, extreme ultraviolet coherence tomography (XCT). The …

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Correlative Fluorescence and Soft X-Ray Microscopy in an Integrated Laboratory-based Setup

Julius Reinhard, Sophia Kaleta, Johann J. Abel, Felix Wiesner et autres

We present an integrated correlative fluorescence and soft X-ray microscope in the water-window spectral range employing a laser-produced plasma as a source. Demonstration experiments with fluorescent nanoparticles, bacteria and various cell lines are shown.

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Optical coherence tomography of encapsulated two-dimensional materials using extreme ultraviolet radiation from high-harmonic generation sources

Felix Wiesner, Julius Reinhard, Johann J. Abel, Martin Wünsche et autres

We present the investigation of encapsulated two-dimensional materials with extreme ultraviolet (EUV) coherence tomography. This method is demonstrated on encapsulated graphene using EUV radiation produced by a high-harmonic generation source.

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Laboratory-Based Correlative Soft X-ray and Fluorescence Microscopy in an Integrated Setup

Julius Reinhard, Sophia Kaleta, Johann J. Abel, Felix Wiesner et autres

Correlative microscopy is a powerful technique that combines the advantages of multiple imaging modalities to achieve a comprehensive understanding of investigated samples. For example, fluorescence microscopy provides unique functional contrast by imaging only specifically labeled components, especially in biological samples. However, the …

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Non-destructive depth reconstruction of Al-Al$_2$Cu layer structure with nanometer resolution using extreme ultraviolet coherence tomography

Johann J. Abel, Jonathan Apell, Felix Wiesner, Julius Reinhard et autres

Non-destructive cross-sectional characterization of materials systems with a resolution in the nanometer range and the ability to allow for time-resolved in-situ studies is of great importance in material science. Here, we present such a measurements method, extreme ultraviolet coherence tomography (XCT). The …

Correlative soft X-ray and fluorescence microscopy in the water window region in an integrated laboratory-based setup

Sophia Kaleta, Julius Reinhard, Felix Wiesner, Johann J. Abel et autres

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Laboratory-Based Correlative Soft X-ray and Fluorescence Microscopy in an Integrated Setup

Julius Reinhard, Sophia Kaleta, Johann J. Abel, Felix Wiesner et autres

Correlative microscopy is a powerful technique that combines the advantages of multiple imaging modalities to achieve a comprehensive understanding of investigated samples. For example, fluorescence microscopy provides unique functional contrast by imaging only specifically labeled components, especially in biological samples. However, the …

Broadband soft X-ray source from a clustered gas target dedicated to high-resolution XCT and X-ray absorption spectroscopy

Karol Adam Janulewicz, Łukasz Węgrzyński, Tomasz Fok, Andrzej S. Bartnik et autres

The development of the broad-bandwidth photon sources emitting in the soft X-ray range has attracted great attention for a long time due to the possible applications in high-resolution spectroscopy, nano-metrology, and material sciences. A high photon flux accompanied by a broad, smooth …

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