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Enhanced Second-Harmonic Generation by Metal Surfaces with Nanoscale Roughness: Nanoscale Dephasing, Depolarization, and Correlations
Abstract
On the basis of spectral-expansion Green's function theory, we theoretically describe the topography, polarization, and spatial-coherence properties of the second-harmonic (SH) local fields at rough metal surfaces. The spatial distributions of the fundamental frequency and SH local fields are very different, with highly enhanced hot spots of the SH. The spatial correlation functions of the amplitude, phase, and direction of the SH polarization all show spatial decay on the nanoscale in the wide range of the metal fill factors. This implies that SH radiation collected from even nanometer-scale areas is strongly depolarized and dephased, i.e., has the nature of hyper-Rayleigh scattering, in agreement with recent experiments. The present theory is applicable to nanometer-scale nonlinear-optical illumination, probing, and modification.
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Cites
Optical Constants of the Noble Metals
Johnson, P. B., & Christy, R. W. (1972) · Physical Review B · doi:10.1103/physrevb.6.4370 · Cited by 20,094
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Self-citationJain, P. K., Xiao, Y., Walsworth, R., & Cohen, A. E. (2009) · Nano Letters · doi:10.1021/nl900007k · Cited by 300
Long-lived electron emission reveals localized plasmon modes in disordered nanosponge antennas
Hergert, G., Vogelsang, J., Schwarz, F., Wang, D., Kollmann, H., Groß, P., Lienau, C., Runge, E., & Schaaf, P. (2017) · Light: Science & Applications · doi:10.1038/lsa.2017.75 · Cited by 37
Metadata
- Authors
- Stockman, M. I., Bergman, D. J., Anceau, C., Brasselet, S., & Zyss, J.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2004-02-06
- Volume
- 92
- Issue
- 5
- Pages
- 057402-057402
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1964386705
- Cited by
- 177
- References
- 1
- FWCI
- 8.07
- Type
- journal article
- Language
- en
- Open access
- closed
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- Stockman, M. I., Bergman, D. J., Anceau, C., Brasselet, S., & Zyss, J. (2004). Enhanced Second-Harmonic Generation by Metal Surfaces with Nanoscale Roughness: Nanoscale Dephasing, Depolarization, and Correlations. Physical Review Letters. https://doi.org/10.1103/physrevlett.92.057402
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