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Plasmon-enhanced versatile optical nonlinearities in Au-Ag-Au multi-segmental hybrid structure

Abstract

Au-Ag-Au multi-segmental hybrid structure was synthesized by using electrodeposition method based on anodic aluminum oxide (AAO) membrane. The third-order optical nonlinearities, second harmonic generation (SHG) and photoluminescence (PL) properties containing ultrafast supercontinuum generation and plasmon mediated thermal emission have been investigated. Significant optical enhancements have been obtained near surface plasmon resonance wavelength in all the above mentioned nonlinear processes. Comparative studies between Au-Ag-Au multi-segmental hybrid structure and the corresponding single-component Au and Ag hybrid structures demonstrate that Au-Ag-Au multi-segmental hybrid structure has much larger optical nonlinearities than its counterparts. These results demonstrate that Au-Ag-Au hybrid structure is a promising candidate for the applications in plasmonic devices and enhancement substrates.

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Publication details

The article was received on 11 Apr 2018, accepted on 04 Jun 2018 and first published on 05 Jun 2018


Article type: Paper
DOI: 10.1039/C8NR02938E
Citation: Nanoscale, 2018, Accepted Manuscript
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    Plasmon-enhanced versatile optical nonlinearities in Au-Ag-Au multi-segmental hybrid structure

    L. Yao, J. Zhang, H. Dai, M. Wang, L. Zhang, X. Wang and J. Han, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR02938E

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