Non-degenerate wavelength computational ghost imaging with thermal light

TL;DR

This paper demonstrates that non-degenerate wavelength computational ghost imaging using thermal light can produce high-quality images with improved spatial resolution in turbulent conditions, especially when using longer wavelengths.

Contribution

It introduces a novel approach to ghost imaging with thermal light at different wavelengths, showing advantages over traditional methods in turbulence.

Findings

High-quality ghost images achieved with different wavelengths

Longer wavelengths improve spatial resolution in turbulence

Experimental validation confirms theoretical predictions

Abstract

Non-degenerate wavelength computational ghost imaging with thermal light source is studied theoretically and experimentally. The acquired computational ghost images are of high quality when the wavelength of computed light is different from the light detected by bucket detector. Compared to the necessary light of short wavelength in previous ghost imaging, the use of longer wavelength light is demonstrated to bring about ghost images with higher spatial resolution, in strong atmospheric turbulence.