Experimental demonstration of photonic crystal waveplates

摘要

We have constructed and experimentally tested a microwave half waveplateusing the dispersive birefringent properties of a bulk two-dimensional photoniccrystal away from its band gap. Our waveplate device exhibited a 200:1polarization contrast, limited by our experimental resolution. We anticipatethat photonic crystal waveplates will have important practical applications inseveral areas, including integrated photonic circuits.