Details

Autor(en) / Beteiligte

• Passler, Nikolai Christian
• Gubbin, Christopher R
• Folland, Thomas Graeme
• Razdolski, Ilya
• Katzer, D. Scott
• Storm, David F
• Wolf, Martin
• De Liberato, Simone
• Caldwell, Joshua D
• Paarmann, Alexander

Titel

Strong Coupling of Epsilon-Near-Zero Phonon Polaritons in Polar Dielectric Heterostructures

Ist Teil von

• Nano letters, 2018-07, Vol.18 (7), p.4285-4292

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We report the first observation of epsilon-near-zero (ENZ) phonon polaritons in an ultrathin AlN film fully hybridized with surface phonon polaritons (SPhP) supported by the adjacent SiC substrate. Employing a strong coupling model for the analysis of the dispersion and electric field distribution in these hybridized modes, we show that they share the most prominent features of the two precursor modes. The novel ENZ-SPhP coupled polaritons with a highly propagative character and deeply subwavelength light confinement can be utilized as building blocks for future infrared and terahertz nanophotonic integration and communication devices.