Patent · US Active

Plasmonic device tuned using physical modulation

US8223425B2 · kind B2 · utility

1Cited by

1References

5Claims

0Family size

Assignee

Sharp Laboratories of America, Inc. · US

Inventors

Akinori Hashimura · Vancouver, US
Liang Tang · Sunnyvale, US
Apostolos T. Voutsas · Vancouver, US

Key dates

Filing date	Dec 23, 2009
Grant date	Jul 17, 2012
Priority date	—
Expiry date	Jan 12, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/10
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A plasmonic display device is provided that uses physical modulation mechanisms. The device is made from an electrically conductive bottom electrode and a first dielectric layer overlying the bottom electrode. The first dielectric layer is a piezoelectric material having an index of expansion responsive to an electric field. An electrically conductive top electrode overlies the first dielectric layer. A first plasmonic layer, including a plurality of discrete plasmonic particles, is interposed between the top and bottom electrodes and in contact with the first dielectric layer. In one aspect, the plasmonic particles are an expandable polymer material covered with a metal coating having a size responsive to an electric field.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.