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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Bibliographic Details
Published in:Light Sci Appl
Main Authors: Ambrosio, Antonio, Tamagnone, Michele, Chaudhary, Kundan, Jauregui, Luis A., Kim, Philip, Wilson, William L., Capasso, Federico
Format: Artigo
Language:Inglês
Published: Nature Publishing Group UK 2018
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Online Access:https://ncbi.nlm.nih.gov/pmc/articles/PMC6107022/
https://ncbi.nlm.nih.gov/pubmed/30839629
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/s41377-018-0039-4
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