High-harmonic array beams enable a new class of imaging techniques by combining the short wavelengths of high-harmonic generation (HHG) with precisely structured spatial beam profiles. By coherently arranging multiple high-harmonic sources into controllable arrays, we produce EUV and soft X-ray beams with enhanced brightness, phase stability, and spatial coherence.

These array beams provide exceptional sensitivity to nanoscale features and ultrafast dynamics, allowing imaging beyond the diffraction limit while preserving femtosecond temporal resolution. The engineered interference between harmonics enables tunable beam shaping, paving the way for highly customizable imaging modalities.

Key advantages

• Sub-nanometer spatial resolution using EUV and soft X-ray harmonics
• Femtosecond temporal precision for ultrafast imaging
• Improved signal-to-noise ratio through coherent beam combining
• Flexible beam engineering for application-specific contrast

Applications

• Coherent diffractive imaging (CDI)
• Lensless nanoscale microscopy
• Time-resolved imaging of electronic and structural dynamics
• Materials science, nanotechnology, and semiconductor inspection

High-harmonic array beams represent a powerful platform for next-generation imaging systems, bridging ultrafast optics and nanoscale resolution in a single, scalable approach.

Academic / paper-style version

High-Harmonic Array Beams for Advanced Imaging
High-harmonic generation provides coherent EUV and soft X-ray radiation suitable for ultrafast, high-resolution imaging. By organizing high-harmonic emitters into phase-locked arrays, complex beam profiles with tailored spatial coherence and interference can be generated. Such high-harmonic array beams enhance imaging contrast, resolution, and temporal fidelity, offering new capabilities for lensless and time-resolved nanoscale imaging.

Short feature blurb

High-Harmonic Array Beams
Coherently structured EUV and soft X-ray beams that deliver ultrafast, nanoscale imaging with superior coherence and contrast.