Title :
Negative index metamaterials at optical frequencies
Author :
Bratkovsky, A.M. ; Ponizovskaya, E.V. ; Wang, S.Y. ; Wu, W.
Author_Institution :
Hewlett-Packard Lab., Palo Alto
Abstract :
We have also studied the possibility of forming the isotropic 3D negative index material from an assembly of Ag nanoparticles. It appears that various open- and close-packed structures exhibit "soft" electromagnetic response and extraordinary transmission at certain wavelengths that much exceed the period of the structures. It appears that various nanoparticles assemblies are close to having negative index but remain "positive". They are discussed from a perspective to be used as "transparent metals".
Keywords :
metamaterials; nanoparticles; nanoparticles assemblies; negative index metamaterials; optical frequencies; soft electromagnetic response; Dielectrics; Electromagnetic radiation; Electromagnetic refraction; Frequency; Image resolution; Lenses; Magnetic materials; Metamaterials; Optical films; Optical refraction;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4395708
