We present what we believe to be the first study of deep subwavelength surface modes in binary metal–dielectric metamaterials. By employing anomalous coupling in binary periodicity, peculiar properties of band structure and eigenmode symmetry are obtained. We show that strongly confined plasmonic Tamm-like and Shockley-like surface modes can be formed at the termination of the array. We clarify the character of each surface mode and analyze its unique symmetry with the corresponding band structure.
© 2010 Optical Society of America
Optics at Surfaces
Original Manuscript: February 11, 2010
Revised Manuscript: April 23, 2010
Manuscript Accepted: April 28, 2010
Published: May 24, 2010
Sung Hyun Nam, Erick Ulin-Avila, Guy Bartal, and Xiang Zhang, "Deep subwavelength surface modes in metal–dielectric metamaterials," Opt. Lett. 35, 1847-1849 (2010)