Abstract
This Letter presents an experimental study of nonlinear plasmonic effects in gold-stripe waveguides. The optical characterization is performed by a picosecond laser and reveals two nonlinear effects related to propagation of long-range surface plasmon polaritons: nonlinear power transmission of plasmonic modes and spectral broadening of plasmonic modes. The experimental values of the third-order susceptibility of the gold layers are extracted. They exhibit a clear dependence on layer thickness. (C) 2016 Optical Society of America
Original language | English |
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Journal | Optics Letters |
Volume | 41 |
Issue number | 2 |
Pages (from-to) | 317-320 |
ISSN | 0146-9592 |
DOIs | |
Publication status | Published - 2016 |
Bibliographical note
© 2016 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.Keywords
- OPTICS
- SURFACE-PLASMON-POLARITON
- SELF-PHASE MODULATION
- WAVE-GUIDES
- NONLINEARITY
- FILMS