Focusing of light by a nanohole array
We demonstrate a conceptually new mechanism for focusing at optical frequencies based upon the use of nano-hole quasi-periodic arrays in metal screens. Using coherent illumination at 660nm and scanning near-field optical microscopy, ~ 290nm "hot spots", were observed at a distance of ~ 12:...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2007.
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| Subjects: | |
| Online Access: | Get fulltext |