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Related Experiment Video

Updated: Apr 27, 2026

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

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Published on: August 16, 2012

Lensless ghost imaging with sunlight.

Xue-Feng Liu, Xi-Hao Chen, Xu-Ri Yao

|July 1, 2014

Summary

This summary is machine-generated.

Lensless ghost imaging (GI) was demonstrated using sunlight, a readily available light source. This advancement paves the way for practical applications of GI using natural daylight.

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Area of Science:

Optics
Quantum Imaging
Photonics

Background:

Ghost imaging (GI) typically requires structured light sources.
Sunlight is a readily available, albeit complex, thermal light source.

Purpose of the Study:

To demonstrate lensless ghost imaging using sunlight.
To explore the feasibility of utilizing natural daylight for ghost imaging applications.

Main Methods:

Filtering sunlight to isolate a narrow spectral line.
Measuring the intensity correlation of the filtered sunlight.
Utilizing the correlated thermal light for lensless imaging of a two-hole object.

Main Results:

Successful demonstration of lensless ghost imaging with sunlight.
Imaging of a two-hole object was achieved using filtered solar light.
Intensity correlations of the thermal light source were measured.

Conclusions:

Lensless ghost imaging with sunlight is achievable.
This work represents a significant step towards practical ghost imaging applications using ordinary daylight.
The use of filtered sunlight offers a cost-effective and accessible illumination method for GI.