Fig. 6
From: A metasurface with bidirectional hyperbolic surface modes and position-sensing applications
Measured field distributions. a–d Ex distribution when the metasurface is excited along the x-direction, for a = 3.8 mm, 2.6 mm, 1.4 mm, and 0.4 mm, respectively. e–h Ex distribution when excited along the y-direction, with a = 3.8 mm, 2.6 mm, 1.4 mm, and 0.4 mm, respectively
