TY - JOUR T1 - Geometries and materials for subwavelength surface plasmon modes JF - Journal of the Optical Society of America A Y1 - 2004 A1 - Rashid Zia A1 - Mark D. Selker A1 - Catrysse, Peter B. A1 - Mark L. Brongersma VL - 21 IS - 12 JO - J. Opt. Soc. Am. A ER -