Fig. 4: Spatial maps of the enhanced partial local density of optical states (PLDOS). | Nature Communications

Fig. 4: Spatial maps of the enhanced partial local density of optical states (PLDOS).

From: Near-field probing of the local density of optical states enhanced by bound states in the continuum in nonlocal metasurfaces

Fig. 4

a–c Calculated spatial distribution of y-component of the PLDOS enhancement, Pyy/P0 in the central unit cell of a 9 × 9 array at the frequencies 0.35 THz, 0.395 THz, and 0.45 THz, respectively. d–f Measured spatial distribution of with PLDOS enhancement, Pyy/P0, with the y-polarized near-field excitation and detection at 0.35 THz, 0.395 THz, and 0.45 THz, respectively. The calculated and measured spatial distributions are obtained at a height of 10 μm over the metasurface with an array size of 84 × 84 dimers.

Back to article page