Optical fiber probe, optical detection device, and optical detection method
US7586084B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 2, 2006 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Sep 20, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y35/00
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
An optical detection device image is disclosed that allows fast measurements using near-field light at high resolution and high efficiency but without necessity of position alignment of an optical fiber probe. The optical detection device includes an optical fiber probe having a core for propagating light with an optical probe being formed at a front end of the core; a movement control unit to move the optical fiber probe to approach or depart from a sample; and a detection unit to detect light from the sample surface, wherein on the front end surface of the core of the optical probe, there are a first exit section on a peripheral side for emitting propagating light and a second exit section for seeping out the near-field light, the first exit section and the second exit section are formed in a concentric manner, and the tilt angle of the first exit section is different from the tilt angle of the second exit section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.