The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2020
Filed:
Aug. 19, 2017
International Business Machines Corporation, Armonk, NY (US);
Eth Zurich, Zurich, CH;
Cynthia Gruber, Rueschlikon, CH;
Lars Herrmann, Rueschlikon, CH;
Emanuel Marc Lörtscher, Bonstetten, CH;
Bruno Michel, Zurich, CH;
Lukas Novotny, Zurich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An optical sensing device includes a substrate; a first dielectric layer extending thereon; a plurality of pairs of opposite antennas patterned on the first layer; and a second dielectric layer that covers all of the antennas. Opposite antennas are, in each of the pairs, separated by a gap g, which, on average, is between 1 nm and 50 nm, as measured in a direction x parallel to a main plane of the substrate. The pairs of antennas have different geometries. The second layer covers all the antennas and defines an electro-magnetic field enhancement volume between the opposite antennas of each of the pairs, thanks to the gap. Electro-magnetic radiation can be concentrated in each volume, making it possible to optically sense an analyte via opposite antennas of each of the pairs. Such a device allows analytes to be funneled and guided into the field-enhanced volumes for deterministic sensing.