Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.197401
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Funding
- FP7 [306772]
- Agence Nationale de la Recherche [ANR-13-BS10-0007, ANR-11-LABX-0001-01]
- Agence Nationale de la Recherche (ANR) [ANR-13-BS10-0007, ANR-11-LABX-0001] Funding Source: Agence Nationale de la Recherche (ANR)
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Remote excitation and emission of two-photon luminescence and second-harmonic generation are observed in micrometer long gold rod optical antennas upon local illumination with a tightly focused near-infrared femtosecond laser beam. We show that these nonlinear radiations are emitted from the entire antenna and the measured far-field angular patterns bear the information regarding the nature and origins of the respective nonlinear processes. We demonstrate that the nonlinear responses are locally induced by a propagating surface plasmon at the excitation frequency, enabling thereby a polariton-mediated spatial tailoring and design of coherent and incoherent nonlinear responses.
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