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Selective excitation and imaging of ultraslow phonon polaritons in thin hexagonal boron nitride crystals

We selectively excite and study two new types of phonon-polariton guided modes that are found in hexagonal boron nitride thin flakes on a gold substrate. Such modes show substantially improved confinement and a group velocity that is hundreds of times slower than the speed of light, thereby providin...

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Detalles Bibliográficos
Autores principales: Ambrosio, Antonio, Tamagnone, Michele, Chaudhary, Kundan, Jauregui, Luis A., Kim, Philip, Wilson, William L., Capasso, Federico
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6107022/
https://www.ncbi.nlm.nih.gov/pubmed/30839629
http://dx.doi.org/10.1038/s41377-018-0039-4