Figure 1 | Scientific Reports

Figure 1

From: Temperature-mediated invocation of the vacuum state for switchable ultrawide-angle and broadband deflection

Figure 1

(a) Schematics in which the deflection grating is present in the ON state but effectively disappears in the OFF state; arrows labeled Inc, 0, and −1 show the propagation directions of the incident plane wave, the specularly reflected Floquet harmonic of order m = 0, and the nonspecularly reflected, i.e., deflected Floquet harmonic of order m = −1, respectively, in the ideal case. (b) Relative permittivity of InSb at different temperatures. The blue solid lines are for the real part and the red dash-dotted lines are for the imaginary part. Thick vertical lines (identified by 1, 2, 3) present three examples of transition from the vacuum state to the dielectric state by decreasing T.

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