Enhanced stimulated Raman scattering of water by KOH | Zendy

Ying Wang | Zendy; Fabing Li | Zendy; Chong Wang | Zendy; Wenhui Fang | Zendy; Chenglin Sun | Zendy; Zhiwei Men | Zendy

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Enhanced stimulated Raman scattering of water by KOH

Author(s) -

Ying Wang,

Fabing Li,

Chong Wang,

Wenhui Fang,

Chenglin Sun,

Zhiwei Men

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.389681

Subject(s) - raman scattering , raman spectroscopy , materials science , optics , x ray raman scattering , dissolution , signal (programming language) , laser , coherent anti stokes raman spectroscopy , analytical chemistry (journal) , chemistry , physics , chromatography , computer science , programming language

Stimulated Raman scattering (SRS) of water and a 1 M KOH-H 2 O solution are investigated using a Nd:YAG laser in both forward and backward directions. An obvious enhanced SRS signal is realized by dissolving KOH in liquid water. Compared with pure water, the performance improvements include the appearance of low-wavenumber Raman peaks, higher Raman intensity, an increased Raman gain, and an enhanced hydrogen bonding network. In this paper, the SRS enhancement phenomenon is explained from both the hydrogen bonding structure and the mechanism of stimulated Raman scattering. We consider it to be a very important SRS enhancement technique, which is low cost, simple, but reliable. Meanwhile, it can easily be extended to other alkali hydroxides.

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