The broadband epsilon-near-zero metamaterials consisting of step-like metal-dielectric multilayer structures with gain media is proposed. Low-loss functional optical devices including prisms for broadband directional emission and S-shaped lenses for phase front shaping are demonstrated.
© 2014 OSA
L. Sun, X. Yang, and J. Gao, "Broadband Epsilon-Near-Zero Metamaterials with Step-like Metal-Dielectric Multilayer Structures with Gain Media," in CLEO: 2014, OSA Technical Digest (online) (Optical Society of America, 2014), paper JTu4A.33.
References are not available for this paper.