Spatial light modulator having a capacitively coupled photoconductor

A spatial light modulator comprising:

• a semiconductor element comprising a semiconductor substrate having a first surface and an opposed second surface, a first transparent metallic electrode, a dielectric layer disposed between said first surface of said semiconductor substrate and a surface of said first transparent metallic electrode, and a charge-confining microgroove lattice structure formed in said second surface of said semiconductor substrate;
• a dielectric mirror having a first surface and an opposed second surface, said first surface of said dielectric mirror being adjacent said second surface of said semiconductor substrate;
• an electro-optic crystal having a first surface and an opposed second surface, said first surface of said electro-optic crystal being adjacent said second surface of said dielectric mirror;
• a second transparent electrode having a first surface and an opposed second surface, said first surface of said second transparent electrode being adjacent said second surface of said electro-optic crystal;
• and
• means for applying a voltage pulse between said first transparent electrode and said second transparent electrode.