927931.fig.005a
(a)
927931.fig.005b
(b)
927931.fig.005c
(c)
927931.fig.005d
(d)
Figure 5: Spiral photonic crystal structures. (a) An array of dielectric spirals. (b) An array of metalized spirals. (c) Detail of a spiral with lateral resolution is in the order of 100nm. (d) The diffraction pattern generated when the structure is illuminated with white light.