A dipole frequency selective surface is electronically printed on to a
semiconductor backed by an insulating substrate, by means of an optic
al excitation. The surface impedance of the plasma-generated array is
described in terms of the electron-hole concentration. Concentrations
of at least 10(18)cm(-3) are required for a resonant state to be reach
ed, whereas power is mainly dissipated at similar to 10(17)cm(-3). The
effect of the insulator thickness is briefly discussed.