Fig. 3: Dual-color imaging for THz dispersive meta-object with CS method. | Light: Science & Applications

Fig. 3: Dual-color imaging for THz dispersive meta-object with CS method.

From: Dual-color terahertz spatial light modulator for single-pixel imaging

Fig. 3

a Measured transmission spectra of RA (red) and RB (blue) after smoothing. b Diagram of the unit cell for meta-objects, p = 180 μm, and a is 98 and 104 μm for RA and RB, respectively. The bottom diagrams are two meta-objects for Smb and Smq, which are combined with RA and RB in different orders. c Photo of the fabricated meta-object for imaging experiment. d, g PSNRs of the reconstructed images at different compression ratios for conventional CS and ACS algorithms. e, h Reconstructed images of Smb and Smq through 64 measurements with conventional CS and ACS algorithm at f1 and f2. f, i Pseudo-color images of Smb and Smq which are mixtures of the images at f1 and f2

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