Figure 1
From: Experimental demonstration of spectral domain computational ghost imaging
(a) Experimental setup. (b) SLED full spectrum with the wavelength band of the programmable spectral filter highlighted in orange. (c) Programmed spectral filter attenuation to generate the complementary Fourier pairs, here limited to 33 pairs patterns (N = 16) for clarity. The patterns are plotted in the following order: constant intensity (\(I_0^{+c}\)), zero intensity (\(I_0^{-c}\)), followed by complementary pairs of sine and cosine with increasing modulation frequency.
