Low-cost Fourier ghost imaging using a light-dependent resistor

摘要

We propose and demonstrate a method for lowering the cost of ghost imaging (GI) setups by employing cheaper devices, such as a commercial projector and a light-dependent resistor. Spatial light modulators and high-quality photodiodes are often used in GI, but the cost of these devices limits its implementation in undergraduate or even graduate optics laboratories. Our proposed imaging system produces good reconstructions of our test object even at 10% spectral coverage that is well within sub-Nyquist sampling. This may be used as an alternative low-cost and easy-to-build imaging system, which we can easily extend for technological applications using wavelengths outside the visible spectrum.