Demonstration of single-frame coherent X-ray diffraction imaging using triangular aperture: Towards dynamic...

Area of Science:

• Physics
• Materials Science
• Nanotechnology

Background:

• Coherent diffraction imaging (CDI) offers high-resolution structural visualization beyond lens limitations.
• Single-frame X-ray CDI is crucial for high spatiotemporal resolution of dynamic processes.

Purpose of the Study:

• To demonstrate a general method for single-frame X-ray CDI.
• To achieve high-resolution imaging of nanoscale structures and dynamics.

Main Methods:

• Utilized a triangular aperture and a Fresnel zone plate for X-ray CDI.
• Employed 5 keV synchrotron radiation X-rays for imaging.
• Reconstructed object images from diffraction data.

Main Results:

• Achieved spatial resolution higher than 50 nm with a 0.1 s exposure.
• Attained 17 nm resolution after a 10 s exposure.
• Reconstructed images without prior sample information.

Conclusions:

• The developed method enables high-resolution, single-frame X-ray CDI.
• This technique is promising for studying nanoscale dynamics with advanced light sources.
• Opens new avenues for research in materials science and biology.