Ultrafast plasmonics using transparent conductive oxide hybrids in the epsilon near-zero regime

Abstract

The dielectric response of transparent conductive oxides near the bulk plasmon frequency is characterized by a refractive index less than vacuum. In analogy with x-ray optics, it is shown that this regime results in total external reflection and air-guiding of light. In addition, the strong reduction of the wavevector in the ITO below that of free space enables a new surface plasmon polariton mode which can be excited without requiring a prism or grating coupler. Ultrafast control of the surface plasmon polariton mode is achieved with a modulation amplitude reaching 20%.

5 pages, 4 figures

References in corpus (3)

• Epsilon-Near-Zero (ENZ) Metamaterials and Electromagnetic Sources: Tailoring the Radiation Phase Pattern
• Ultrafast active plasmonics: transmission and control of femtosecond plasmon signals
• Carrier concentration dependence of optical Kerr nonlinearity in indium tin oxide films

Cited by in corpus (9)

• Epsilon-Near-Zero Al-Doped ZnO for Ultrafast Switching at Telecom Wavelengths: Outpacing the Traditional Amplitude-Bandwidth Trade-Off
• Controlling hybrid nonlinearities in transparent conducting oxides via two-colour excitation
• Broadband Ultrafast Dynamics of Refractory Metals: TiN and ZrN
• Ultrafast all-optical switching enabled by epsilon-near-zero modes in metal-insulator nanocavities
• Hot Electron Dynamics in Ultrafast Multilayer Epsilon-Near-Zero Metamaterial
• All-optical modulation in wavelength-sized epsilon-near-zero media
• Improving the Transmittance of an Epsilon-Near-Zero based Wavefront Shaper
• Polaritonic hybrid-epsilon-near-zero modes: engineering strong optoelectronic coupling and dispersion in doped cadmium oxide bilayers
• Unlocking the full potential of wave-matter nonlinear coupling in the epsilon-near-zero regime