  In this paper, we employ the novel design of the metamaterial half-wave plate
by using the multiple layers of the metamaterials with some specific rotation
angles. The rotation angles are given by composite pulse control which is the
well-known quantum control technique. A big advantage of this method can
analytically calculate the rotation angles and can be easily extended to the
multiple layers. The more layers of the metamaterials can present more
bandwidth of half-wave plate. In this paper, we present 1, 3, 5, 7
configurations of layers of a metamaterial half-wave plate and we demonstrate
that our device increasingly enhance the bandwidth of performance.
