Signal detecting device and signal detecting method
US7940606B2 · kind B2 · utility
1Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2009 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Oct 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24328
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal detecting device includes: a semiconductor substrate; a near-field light generating section that is provided on the semiconductor substrate and generates near-field light near an interface with the semiconductor substrate; a light source that outputs light having wavelength corresponding to photon energy about a half as large as band-gap energy of a material of the semiconductor substrate; and a current detecting unit that detects a photocurrent generated in the semiconductor substrate when the near-field light is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.