Fig. 2: Monostatic characterization of lateral resolving powers of metamaterial lens in water ambient with ABS 3D printed plastic rods. | Nature Communications

Fig. 2: Monostatic characterization of lateral resolving powers of metamaterial lens in water ambient with ABS 3D printed plastic rods.

From: Sub-wavelength lateral detection of tissue-approximating masses using an ultrasonic metamaterial lens

Fig. 2

Intensity is stated for all in arbitrary units (a.u.). a Sample of equally spaced rods of decreasing diameter. Transducer alone does not clearly detect any of the rods. b, c Scan of 5 mm diameter rods with gaps of 5 mm (b) and 4 mm (c) between the boundaries. Only the ML shows the presence of more than one object. d–f Rods with subwavelength gap spacing of 0.69λ (d), 0.47λ (e), and 0.41λ (f).

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