Fig. 2: Spatial resolution of TERS imaging. | npj 2D Materials and Applications

Fig. 2: Spatial resolution of TERS imaging.

From: Investigating heterogeneous defects in single-crystalline WS2 via tip-enhanced Raman spectroscopy

Fig. 2

a TERS map of A1g peak area intensity for monolayer WS2 with background (acquisition time for point: 0.5 s). The measured region is the same as the confocal Raman map. b Magnification of the green dashed square in the TERS image in (a). The white dotted curve indicates the sample edge. c Normalized TERS intensity profile along a yellow solid bar and the derivative of the intensity profile.

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