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Imaging of Ultra-Confined Phonon Polaritons in Hexagonal Boron Nitride on Gold

Ambrosio, A., Tamagnone, M., Chaudhary, K., Jauregui, L., Kim, P., Wilson, W., Capasso, F.
Conference on Lasers and Electro-Optics


We investigated infrared phonon polariton on thin hexagonal boron nitride flakes on gold. We successfully imaged ultraslow guided modes in both restrahlen bands, using photo-induced force microscopy and scattering type near field scanning optical microscopy.

DOI: 10.1364/cleo_qels.2018.fth1k.6