Spatiospectral nanoimaging of surface phonon plasmons
27 Jun 2023With their high spatial confinement, surface plasmon polaritons (SPPs) and surface phonon polaritons (SPhPs) in 2D materials can open up new opportunities to enhance light-matter interaction and enable the development of super lenses, subwavelength metamaterials, and other novel photonic devices. In-situ characterization of these polaritonic excitations across different applications requires a versatile optical imaging and spectroscopy tool with nanometer spatial resolution and wide spectral coverage. In this application note from Bruker, explore how through a noninvasive near-field light-matter interaction, scattering-type scanning near-field optical microscopy (s-SNOM) provides a unique way to selectively excite and locally detect electronic and vibrational resonances in real space.
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