Surface enhanced hyper Raman scattering (SEHRS) and its applications,Chemical Society Reviews

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Surface enhanced hyper Raman scattering (SEHRS) and its applications
Chemical Society Reviews ( IF 40.4 ) Pub Date : 2017-05-22 00:00:00 , DOI: 10.1039/c7cs00137a
Fani Madzharova _{1,

2,

3,

4} , Zsuzsanna Heiner _{1,

2,

3,

4} , Janina Kneipp _{1,

2,

3,

4}

Affiliation

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.

中文翻译：

表面增强超拉曼散射（SEHRS）及其应用

表面增强的超拉曼散射（SEHRS）是自发的，两个光子激发的拉曼散射，发生在等离子纳米结构的高局部光学场中的分子上。SEHRS被视为表面增强拉曼散射（SERS）的非线性类似物，具有大多数特性，但也具有其他特性。它们包括来自不同选择规则的互补光谱信息，以及由于激发的非线性而导致的更强增强。在实际的光谱学中，这可以转化为优势，包括探测分子-表面相互作用时的高选择性，由于强增强而在低浓度下探测分子的可能性以及近红外激发带来的优势。在这篇评论中，我们举例说明了SEHRS可以获得的大量振动光谱信息，并讨论了有助于理解这种效应的工作，因此为SEHRS光谱学提供了指导。未来的应用范围可能从生物光子学到材料研究。

更新日期：2017-07-03

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