An article having: a retroreflective optical element and a plasmonic material on the optical element. A method of: performing an optical measurement on a substrate having a plurality of the articles.
申请公布号
US2009059371(A1)
申请公布日期
2009.03.05
申请号
US20080199824
申请日期
2008.08.28
申请人
THE GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY
