Fig. 4
From: Nonlocal Huygens’ meta-lens for high-quality-factor spin-multiplexing imaging

Wavelength-selective focusing and bright-field imaging of nonlocal Huygens’ meta-lens. a–f Simulated and experimental xz-plane (a, b) and xy-plane (c, d) intensity distributions and bright-field imaging (e, f) at the nonresonant wavelength of 1500 nm and the resonant wavelength of 1560 nm. The xy plane is located at the focal plane extracted from xz-plane profiles. The intensities at the wavelength of 1500 nm are amplified tenfold for clear observation