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- W2953241100 endingPage "2004" @default.
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- W2953241100 abstract "The reflection of light from metallic mirrors results in a near-zero electric field at their surface. This precludes strong light–matter interaction between such mirrors and two-dimensional (2D) materials placed in direct contact with them. Patterning of the metal surfaces with subwavelength grooves can produce anisotropic metasurfaces that offer robust enhancements in the magnitude and control over the direction of the surface fields. Here, we use this control to analyze the Raman tensor for vibrational modes of atomically thin graphene. The anisotropic nature of the grooves leads to different Raman signal enhancement for the G (25 times) and 2D (50 times) Raman peaks of graphene for optimized groove dimensions. A notable suppression of these peaks by 40% for specific groove dimensions is also achieved. These findings suggest the use of metasurfaces as tunable surface-enhanced Raman scattering substrates to study the vibrational modes of 2D materials with reduced background signals." @default.
- W2953241100 created "2019-06-27" @default.
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- W2953241100 date "2019-06-20" @default.
- W2953241100 modified "2023-10-01" @default.
- W2953241100 title "Anisotropic Metasurfaces as Tunable SERS Substrates for 2D Materials" @default.
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- W2953241100 doi "https://doi.org/10.1021/acsphotonics.9b00416" @default.
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