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Related Experiment Video

Updated: Jun 7, 2025

Author Spotlight: Unveiling the Potential of VSFG Microscopy in Studying Mesoscopically Heterogeneous Self-Assembled Structures
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Fast spectroscopic imaging using extreme ultraviolet interferometry.

Hannah C Strauch, Fengling Zhang, Stefan Mathias

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    Summary
    This summary is machine-generated.

    This study introduces a novel interferometric method combining Fourier transform spectroscopy and holography. This technique rapidly acquires full spectro-microscopic data using extreme ultraviolet pulses from high harmonic generation sources.

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    Area of Science:

    • Ultrafast Science
    • Coherent Imaging
    • Spectroscopy

    Background:

    • Extreme ultraviolet (XUV) pulses from high harmonic generation (HHG) are vital for time-resolved spectroscopy and coherent diffractive imaging.
    • Integrating spectroscopy and microscopy with HHG is challenging due to difficulties in separating spectroscopic and microscopic information.

    Purpose of the Study:

    • To develop a method for combining spectroscopy and microscopy using HHG.
    • To overcome the challenge of decoupling spectroscopic and microscopic information.

    Main Methods:

    • An interferometric approach combining Fourier transform spectroscopy (FTS) and Fourier transform holography (FTH).
    • Generation of phase-locked pulses using a pair of HHG sources.
    • Minimizing interferometric measurements by leveraging the number of high-harmonics and prior sample knowledge.

    Main Results:

    • Achieved over an order of magnitude increase in acquisition speed for full spectro-microscopic data compared to conventional FTS.
    • Enabled high-resolution computational imaging.
    • Demonstrated a method to decouple spectroscopic and microscopic information.

    Conclusions:

    • The presented interferometric technique offers a significant advancement in spectro-microscopic imaging.
    • This method accelerates data acquisition and enhances imaging resolution for HHG-based experiments.