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Tip-Enhanced Infrared Imaging with Sub-10 nm Resolution and Hypersensitivity

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posted on 17.02.2020, 20:33 by Jian Li, Junghoon Jahng, Jie Pang, William Morrison, Jin Li, Eun Seong Lee, Jing-Juan Xu, Hong-Yuan Chen, Xing-Hua Xia
Here we demonstrate sub-10 nm spatial resolution sampling of a volume of ∼360 molecules with a strong field enhancement at the sample–tip junction by implementing noble metal substrates (Au, Ag, Pt) in photoinduced force microscopy (PiFM). This technique shows the versatility and robustness of PiFM and is promising for application in interfacial studies with hypersensitivity and super spatial resolution.

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