Method for single-shot coherent diffractive imaging of magnetic domains

Area of Science:

• Materials Science
• Optics
• Physics

Background:

• Advanced studies of magnetic domains require imaging techniques compatible with free-electron laser (FEL) sources.
• Existing methods may not be suitable for the linearly polarized radiation characteristic of FELs.

Purpose of the Study:

• To develop and demonstrate a novel imaging method for real-space visualization of magnetic domains.
• To ensure compatibility with linearly polarized radiation from FEL sources.

Main Methods:

• A prototype experiment was conducted at the BESSY II synchrotron source.
• Modified existing phase retrieval techniques were employed.
• Gabor transforms were utilized to introduce a reliability map for reconstructions.

Main Results:

• Successfully demonstrated the imaging of magnetic domains in real space using linearly polarized light.
• Validated the feasibility of the developed imaging approach.
• Introduced a reliability map concept for assessing reconstruction quality.

Conclusions:

• The developed imaging method is suitable for real-space studies of magnetic domains.
• This technique is compatible with linearly polarized radiation from FEL sources, paving the way for future research.