Green laser line notch absorber
US9958583B1 · kind B1 · utility
4Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2014 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | May 31, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/834
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical notch filter includes a particle layer including nano-particles in a substrate material. The nano-particles are arranged in one or more arrays to provide a nano plasmonic absorption of radiation having a wavelength of 532 nm incident on the filter. The filter exhibits a radiation absorption profile with an absorption maxima of at least 99% at 532 nm for an angle of incidence of between +50° and −50°, and has a full width half maxima transmission of less than 15 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.