Target substance-detecting apparatus and target substance-detecting method
US7692791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2008 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A target substance-detecting apparatus comprises a target substance-detecting element comprising metal structures, a light irradiation section for irradiating the target substance-detecting element with a light, a light-polarizing section which polarizes the irradiating light and separates an output light emitted from the target substance-detecting element into a first polarized light and a second polarized light, first and second light-receiving sections for outputting first and second signals according to intensity of the first and second polarized lights, respectively; and a control section which determines peaks of absorbances of the first and second polarized lights by measuring the absorbances from the first and second signals respectively, and controls the target substance-detecting element so that the peak values of the first and second absorbances can be maximized and minimized respectively by controlling a incidence angle of formed by a vibration direction of the incident light and a main axis of the target substance-detecting element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.