Abstract
Quantitative measurements of the electric near-field distribution of star-shaped gold nanoparticles have been performed by femtosecond laser ablation. Measurements were carried out on and off the plasmon resonance. A detailed comparison with numerical simulations of the electric fields is presented. Semi-quantitative agreement is found, with slight systematic differences between experimentally observed and simulated near-field patterns close to strong electric-field gradients. The deviations are attributed to carrier transport preceding ablation.
Original language | English |
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Article number | 210 |
Journal | Applied Physics A: Materials Science & Processing |
Volume | 124 |
Issue | 2 |
Number of pages | 7 |
ISSN | 0947-8396 |
DOIs | |
Publication status | Published - Feb 2018 |
Keywords
- ENHANCED RAMAN-SCATTERING
- PLASMON RESONANCE
- REFRACTIVE-INDEX
- NANOPARTICLES
- NANOSTRUCTURES