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. Author manuscript; available in PMC: 2018 Jun 14.
Published in final edited form as: Chem Rev. 2016 Dec 14;117(7):5070–5094. doi: 10.1021/acs.chemrev.6b00545

Figure 2.

Figure 2

Timeline of several key developments in SRS technology and spectroscopy. The evolution toward smaller sampling volumes is mapped onto the vertical axis. Important advances in laser light sources are indicated as well.