Near- and Far-Field Observation of Phonon Polaritons in Wafer-Scale Multilayer Hexagonal Boron Nitride Prepared by Chemical Vapor Deposition

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 44 vom: 25. Nov., Seite e2302045
1. Verfasser:	Calandrini, Eugenio (VerfasserIn)
Weitere Verfasser:	Voronin, Kirill, Balci, Osman, Barra-Burillo, Maria, Bylinkin, Andrei, Shinde, Sachin M, Sharma, Subash, Casanova, Fèlix, Hueso, Luis E, Chuvilin, Andrei, McAleese, Clifford, Conran, Ben R, Wang, Xiaochen, Teo, Kenneth, Volkov, Valentyn S, Ferrari, Andrea C, Nikitin, Alexey Y, Hillenbrand, Rainer
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2023
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article chemical vapor deposition hexagonal boron nitride phonon polaritons wafer-scale

Beschreibung
Zusammenfassung:	© 2023 Wiley-VCH GmbH. Polaritons in layered materials (LMs) are a promising platform to manipulate and control light at the nanometer scale. Thus, the observation of polaritons in wafer-scale LMs is critically important for the development of industrially relevant nanophotonics and optoelectronics applications. In this work, phonon polaritons (PhPs) in wafer-scale multilayer hexagonal boron nitride (hBN) grown by chemical vapor deposition are reported. By infrared nanoimaging, the PhPs are visualized, and PhP lifetimes of ≈0.6 ps are measured, comparable to that of micromechanically exfoliated multilayer hBN. Further, PhP nanoresonators are demonstrated. Their quality factors of ≈50 are about 0.7 times that of state-of-the-art devices based on exfoliated hBN. These results can enable PhP-based surface-enhanced infrared spectroscopy (e.g., for gas sensing) and infrared photodetector applications
Beschreibung:	Date Revised 02.11.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202302045