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Tunable directional beaming from subwavelength metal slits with metal-dielectric composite surface gratings.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kim, Hwi Young Park, Junghyun Lee, Byoungho |
| Copyright Year | 2009 |
| Abstract | A structure for surface-plasmon-polariton mediated directional off-axis beaming with a dynamic tunability of radiation direction is proposed. The key finding in this Letter is that properly designed metal-dielectric composite grating structures surrounding subwavelength metal slit produce a dynamically tunable off-axis beaming effect with variation of the grating permittivity value. The controllability of beam direction by the grating permittivity value opens a way to develop active plasmonic devices based on the beaming effect. |
| File Format | PDF HTM / HTML |
| DOI | 10.1364/OL.34.002569 |
| PubMed reference number | 19724492 |
| Journal | Medline |
| Volume Number | 34 |
| Issue Number | 17 |
| Alternate Webpage(s) | http://ipds.korea.ac.kr/download/publication/44.pdf |
| Alternate Webpage(s) | https://doi.org/10.1364/OL.34.002569 |
| Journal | Optics letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |