| US 7,482,727 B2 | ||
| Composite material with conductive nanowires | ||
| Alexandre Bratkovski, Palo Alto, Calif. (US); Shih-Yuan Wang, Palo Alto, Calif. (US); and Ekaterina V. Ponizovskaya, Palo Alto, Calif. (US) | ||
| Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US) | ||
| Filed on Oct. 13, 2006, as Appl. No. 11/580,641. | ||
| Prior Publication US 2008/0102319 A1, May 01, 2008 | ||
| Int. Cl. H01L 21/84 (2006.01) | ||
| U.S. Cl. 310—300 [257/296; 438/551; 438/584] | 23 Claims |
| 1. A composite material exhibiting at least one of a negative effective permittivity and a negative effective permeability
for incident radiation at an operating wavelength, comprising:
a dielectric layer generally parallel to a dielectric layer plane; and
a first plurality of nanowire pairs disposed in said dielectric layer, each of said first plurality of nanowire pairs comprising
substantially parallel conductive nanowires of short length and separation relative to said operating wavelength;
wherein each of said first plurality of nanowire pairs is substantially coplanar with a first plane substantially parallel
to said dielectric layer plane, and said first plurality of nanowire pairs forms a first pattern within said first plane characterized
by nanowire pair locations and nanowire pair orientations within said first plane, and wherein said first pattern comprises
a first regularly-spaced array of commonly oriented nanowire pairs and forms a second regularly-spaced array of nanowire pairs
that is interspersed with said first regularly-spaced array of nanowire pairs and commonly oriented in a direction substantially
perpendicular to said first regularly-spaced array of nanowire pairs.
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