A Solution-Processed Ultrafast Optical Switch Based on a Nanostructured Epsilon-Near-Zero Medium.
Sign Up to like & getrecommendations! Published in 2017 at "Advanced materials"
DOI: 10.1002/adma.201700754
Abstract: All the optical properties of materials are derived from dielectric function. In spectral region where the dielectric permittivity approaches zero, known as epsilon-near-zero (ENZ) region, the propagating light within the material attains a very high… read more here.
Keywords: solution processed; solution; ultrafast optical; epsilon near ... See more keywords
Enhanced Solar-to-Hydrogen Generation with Broadband Epsilon-Near-Zero Nanostructured Photocatalysts.
Sign Up to like & getrecommendations! Published in 2017 at "Advanced materials"
DOI: 10.1002/adma.201701165
Abstract: The direct conversion of solar energy into fuels or feedstock is an attractive approach to address increasing demand of renewable energy sources. Photocatalytic systems relying on the direct photoexcitation of metals have been explored to… read more here.
Keywords: hydrogen; generation; broadband; epsilon near ... See more keywords
Nonlocality-enabled pulse management in epsilon-near-zero metamaterials.
Sign Up to like & getrecommendations! Published in 2022 at "Advanced materials"
DOI: 10.1002/adma.202107023
Abstract: xxxx. This article is protected by copyright. All rights reserved. read more here.
Keywords: pulse management; epsilon near; near zero; enabled pulse ... See more keywords
Atomic Layer Engineering of Epsilon‐Near‐Zero Ultrathin Films with Controllable Field Enhancement
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Materials Interfaces"
DOI: 10.1002/admi.202000844
Abstract: Enhanced and controlled light absorption as well as field confinement in an optically thin material are pivotal for energy-efficient optoelectronics and nonlinear optical devices. Highly doped transparent conducting oxide (TCO) thin films with near-zero permittivity… read more here.
Keywords: absorption; field; atomic layer; epsilon near ... See more keywords
Gate Tunable Coupling of Epsilon‐Near‐Zero and Plasmonic Modes
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Optical Materials"
DOI: 10.1002/adom.202100800
Abstract: In this work, an active tuning of the coupling strength in a strongly coupled system comprised of a thin epsilon‐near‐zero material and gold nanorods as plasmonic resonators is demonstrated. A novel gating scheme is developed… read more here.
Keywords: epsilon near; tunable coupling; near zero; gate tunable ... See more keywords
Laser induced the tunable permittivity of Epsilon-Near-Zero induced in indium tin oxide thin films
Sign Up to like & getrecommendations! Published in 2020 at "Optical Materials"
DOI: 10.1016/j.optmat.2020.110137
Abstract: Abstract Tunable permittivity of Epsilon-Near-Zero (ENZ) of ITO thin films were realized by Nd: YAG pulse laser irradiation. The effects of different pulsed laser power irradiation on the structure, morphology and optical properties of the… read more here.
Keywords: tunable permittivity; thin films; permittivity; permittivity epsilon ... See more keywords
An epsilon-near-zero-based Dallenbach absorber
Sign Up to like & getrecommendations! Published in 2022 at "Optical Materials"
DOI: 10.1016/j.optmat.2021.111899
Abstract: We report a theoretical analysis of total absorption conditions in a structure consisting of a lossy coating layer on top of a specular metal substrate, which is known as a Dallenbach absorber. All possible combinations… read more here.
Keywords: epsilon near; dallenbach absorber; near zero; absorption ... See more keywords
Strongly Coupled Plasmon Polaritons in Gold and Epsilon-Near-Zero Bifilms
Sign Up to like & getrecommendations! Published in 2023 at "ACS Photonics"
DOI: 10.1021/acsphotonics.2c01412
Abstract: Epsilon-near-zero (ENZ) polaritons in a thin transparent conducting-oxide film exhibit a significant electric field enhancement and localization within the film at frequencies close to their plasma frequency, but do not propagate. Meanwhile, plasmon polariton modes… read more here.
Keywords: epsilon near; near zero; strongly coupled; film ... See more keywords
Gap-Plasmon-Enhanced Second-Harmonic Generation in Epsilon-Near-Zero Nanolayers
Sign Up to like & getrecommendations! Published in 2019 at "ACS Photonics"
DOI: 10.1021/acsphotonics.9b01350
Abstract: With the ability to confine light to subwavelength volumes, plasmonic nanostructures and metamaterials have proven to be powerful tools for nanophotonic applications. For nonlinear processes, however, the small dimensions of nanophotonic devices can become problematic,… read more here.
Keywords: harmonic generation; second harmonic; epsilon near; near zero ... See more keywords
Casimir forces exerted by epsilon-near-zero hyperbolic materials
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-73995-0
Abstract: The Casimir force exerted on a gold dipolar nanoparticle by a finite-thickness slab of the natural hyperbolic material namely, the ortorhombic crystalline modification of boron nitride, is investigated. The main contribution to the force originates… read more here.
Keywords: forces exerted; exerted epsilon; casimir forces; epsilon near ... See more keywords
Epsilon near-zero all-optical terahertz modulator
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/5.0012206
Abstract: We propose an efficient optically actuated THz modulator based on an ultrathin epsilon-near-zero (ENZ) slab photogenerated in an InAs semiconductor. We experimentally demonstrate a modulation depth of 90% at 1 THz obtained with a continuous laser… read more here.
Keywords: optical terahertz; thz; zero optical; modulator ... See more keywords