| Autor: |
S I, Bozhevolnyi, V S, Volkov, K, Leosson, A, Boltasseva |
| Rok vydání: |
2003 |
| Předmět: |
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| Zdroj: |
Journal of microscopy. 209(Pt 3) |
| ISSN: |
0022-2720 |
| Popis: |
In this study, guiding of surface plasmon polaritons excited at a gold film surface along corrugation-free channels in regions that are covered with randomly located surface scatterers, is considered using near-field microscopy for imaging of surface plasmon polariton intensity distributions at the surface. In the wavelength range 713-815 nm, we observed complete inhibition of the surface plasmon polariton propagation inside the random structures composed of individual ( approximately 70 nm high) gold bumps (and their clusters) placed on a 55 nm thick gold film with a bump density of 75 micro m-2. We demonstrate well-defined surface plasmon polariton guiding along corrugation-free 2 micro m wide channels in random structures and, in the wavelength range 738-774 nm, low-loss guiding around 20 degrees bends having a bend radius of approximately 15 micro m. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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