Enhanced third harmonic generation from the epsilon-near-zero modes of ultrathin films

Abstract

We experimentally demonstrate efficient third harmonic generation from an indium tin oxide (ITO) nanofilm (lambda/42 thick) on a glass substrate for a pump wavelength of 1.4 um. A conversion efficiency of 3.3x10^-6 is achieved by exploiting the field enhancement properties of the epsilon-near-zero (ENZ) mode with an enhancement factor of 200. This nanoscale frequency conversion method is applicable to other plasmonic materials and reststrahlen materials in proximity of the longitudinal optical phonon frequencies.

13 pages, 5 figures

References in corpus (13)

• Epsilon-Near-Zero (ENZ) Metamaterials and Electromagnetic Sources: Tailoring the Radiation Phase Pattern
• High temperature epsilon-near-zero and epsilon-near-pole metamaterial emitters for thermophotovoltaics
• Perfect Absorption in Ultrathin Epsilon-Near-Zero Metamaterials Induced by Fast-Wave Non-Radiative Modes
• Dielectric Sensing in Epsilon-Near-Zero Narrow Waveguide Channels
• Directional perfect absorption using deep subwavelength low permittivity films
• Singularity-driven Second and Third Harmonic Generation in a ε-near-zero nanolayer
• Electric Field Enhancement in ε-near-zero Slabs under TM-Polarized Oblique Incidence
• Enhanced Super-Radiance in Epsilon-Near-Zero Plasmonic Channels
• Low-damping epsilon-near-zero slabs: nonlinear and nonlocal optical properties
• On the Inhibition of Linear Absorption in Opaque Materials Using Phase-Locked Harmonic Generation
• Carrier concentration dependence of optical Kerr nonlinearity in indium tin oxide films
• Harmonic Generation in Multi-Resonant Plasma Films
• Anomalous Momentum States, Non-Specular Reflections, and Negative Refraction of Phase-Locked, Second Harmonic Pulses

Cited by in corpus (24)

• Photonics of Time-Varying Media
• Enhanced nonlinear refractive index in epsilon-near-zero materials
• High-harmonic generation from an epsilon-near-zero material
• Minireview on Disordered Optical Metasurfaces
• Optical time reversal from time-dependent Epsilon-Near-Zero media
• Exploiting ITO colloidal nanocrystals for ultrafast pulse generation
• Controlling hybrid nonlinearities in transparent conducting oxides via two-colour excitation
• Negative refraction in time-varying, strongly-coupled plasmonic antenna-ENZ systems
• Enhanced Nonlinear Optical Responses of Layered Epsilon-Near-Zero Metamaterials at Visible Frequencies
• Post-2000 Nonlinear Optical Materials and Measurements: Data Tables and Best Practices
• Second Harmonic Generation from Phononic Epsilon-Near-Zero Berreman Modes in Ultrathin Polar Crystal Films
• Electrodynamics of Conductive Oxides: Intensity-dependent anisotropy, reconstruction of the effective dielectric constant, and harmonic generation
• Giant Field Enhancement in Longitudinal Epsilon Near Zero Films
• Self-interaction of ultrashort pulses in an epsilon-near-zero nonlinear material at the telecom wavelength
• Spontaneous photon production in time-dependent epsilon-near-zero materials
• Origin of third harmonic generation in plasmonic nanoantennas
• Harmonic Generation from Metal-Oxide and Metal-Metal Boundaries
• Understanding the nonlinear optical response of epsilon near zero materials in the time-domain
• Nonreciprocal ENZ-Dielectric Bilayers: Enhancement of Nonreciprocity from a Nonlinear Transparent Conducting Oxide Thin Film at Epsilon-Near-Zero (ENZ) Frequency
• All-optical modulation in wavelength-sized epsilon-near-zero media
• Dependence of the Nonlinear-Optical Response of Materials on their Linear $\epsilon$ and $\mu$
• Viscoelastic optical nonlocality of low-loss epsilon-near-zero nanofilms
• Unlocking the full potential of wave-matter nonlinear coupling in the epsilon-near-zero regime
• Fast and slow nonlinearities in ENZ materials