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Surface enhanced hyper Raman scattering (SEHRS) and its applications

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Abstract

Surface enhanced hyper Raman scattering (SEHRS) is the spontaneous, two-photon excited Raman scattering that occurs for molecules residing in high local optical fields of plasmonic nanostructures. Being regarded as a non-linear analogue of surface enhanced Raman scattering (SERS), SEHRS shares most of its properties, but also has additional characteristics. They include complementary spectroscopic information resulting from different selection rules and a stronger enhancement due to the non-linearity in excitation. In practical spectroscopy, this can translate to advantages, which include a high selectivity when probing molecule–surface interactions, the possibility of probing molecules at low concentrations due to the strong enhancement, and the advantages that come with excitation in the near-infrared. In this review, we give examples of the wealth of vibrational spectroscopic information that can be obtained by SEHRS and discuss work that has contributed to understanding the effect and that therefore provides directions for SEHRS spectroscopy. Future applications could range from biophotonics to materials research.

Graphical abstract: Surface enhanced hyper Raman scattering (SEHRS) and its applications

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Publication details

The article was received on 22 Feb 2017 and first published on 22 May 2017


Article type: Review Article
DOI: 10.1039/C7CS00137A
Citation: Chem. Soc. Rev., 2017, Advance Article
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    Surface enhanced hyper Raman scattering (SEHRS) and its applications

    F. Madzharova, Z. Heiner and J. Kneipp, Chem. Soc. Rev., 2017, Advance Article , DOI: 10.1039/C7CS00137A

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