Abstract
A 30 mega-electron-volt (MeV) Si ion irradiation of BK7 glass containing Ag nanocrystals which induces a partial redistribution of the nanocrystals into linear arrays along the ion tracks was shown. The anisotropy causes a splitting in the optical extinction spectra, so that different surface plasmon resonance bands for longitudinal and transverse polarizations were observed. Resonance shifts as large as 1.5 eV were observed, well into the near-infrared and were in qualitative agreeement with a model for near-field electromagnetic plasmon coupling.
Original language | English |
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Pages (from-to) | 4137-4139 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 83 |
Issue number | 20 |
DOIs | |
Publication status | Published - 17 Nov 2003 |
Externally published | Yes |