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Issue 26, 2018
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Plasmon-enhanced versatile optical nonlinearities in a Au–Ag–Au multi-segmental hybrid structure

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Abstract

A Au–Ag–Au multi-segmental hybrid structure has been synthesized by using an electrodeposition method based on an 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 abovementioned nonlinear processes. Comparative studies between the Au–Ag–Au multi-segmental hybrid structure and the corresponding single-component Au and Ag hybrid structures demonstrate that the Au–Ag–Au multi-segmental hybrid structure has much larger optical nonlinearities than its counterparts. These results demonstrate that the Au–Ag–Au hybrid structure is a promising candidate for applications in plasmonic devices and enhancement substrates.

Graphical abstract: Plasmon-enhanced versatile optical nonlinearities in a Au–Ag–Au multi-segmental hybrid structure

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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, 2018,10, 12695-12703
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    Plasmon-enhanced versatile optical nonlinearities in a Au–Ag–Au multi-segmental hybrid structure

    L. Yao, J. Zhang, H. Dai, M. Wang, L. Zhang, X. Wang and J. Han, Nanoscale, 2018, 10, 12695
    DOI: 10.1039/C8NR02938E

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