Lensless variable magnification by 200  µm single-fiber ghost imaging

Area of Science:

• Optics and Photonics
• Computational Imaging

Background:

• Ghost imaging offers a unique approach to image reconstruction.
• Lensless imaging techniques reduce system complexity and cost.

Purpose of the Study:

• To demonstrate lensless variable magnification using single-fiber ghost imaging.
• To achieve high spatial resolution (10 µm) and tunable imaging parameters.

Main Methods:

• Utilized a 200 µm single-fiber for ghost imaging.
• Varied analysis region size (540x540, 200x200, 100x100 pixels) and sampling intervals.
• Evaluated imaging performance with and without pixel binning.

Main Results:

• Achieved a spatial resolution of 10 µm.
• Successfully visualized a 30 µm particle size target without pixel binning in a 100x100 pixel region.
• Demonstrated variable magnification by adjusting analysis region and sampling.

Conclusions:

• Lensless variable magnification ghost imaging is feasible with single-fiber systems.
• The proposed method offers flexibility in spatial resolution and field of view.
• This technique has potential for high-resolution, cost-effective imaging solutions.