Extracting the Infrared Permittivity of SiO<sub>2</sub> Substrates Locally by Near-Field Imaging of Phonon Polaritons in a van der Waals Crystal

Extracting the Infrared Permittivity of SiO<sub>2</sub> Substrates Locally by Near-Field Imaging of Phonon Polaritons in a van der Waals Crystal

Layered materials in which individual atomic layers are bonded by weak van der Waals forces (vdW materials) constitute one of the most prominent platforms for materials research. Particularly, polar vdW crystals, such as hexagonal boron nitride (h-BN), alpha-molybdenum trioxide (α-MoO<sub>3<...

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Bibliographic Details
Main Authors: Patricia Aguilar-Merino, Gonzalo Álvarez-Pérez, Javier Taboada-Gutiérrez, Jiahua Duan, Iván Prieto, Luis Manuel Álvarez-Prado, Alexey Y. Nikitin, Javier Martín-Sánchez, Pablo Alonso-González
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Nanomaterials
Subjects:
s-SNOM
phonon polaritons
van der Waals materials
infrared permittivity
Online Access:https://www.mdpi.com/2079-4991/11/1/120

Internet

https://www.mdpi.com/2079-4991/11/1/120

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