Strong enhancement of effective refractive index in structured colloids (TiO2@Silica): Localization of light.
Sign Up to like & getrecommendations! Published in 2024 at "Nanoscale"
DOI: 10.1039/d4nr03626c
Abstract: We use non-resonant Raman scattering to demonstrate a large enhancement of the effective refractive index experienced by Raman photons in a scattering medium comprising spatially-correlated photonic structures of core-shell TiO2@Silica scatterers mixed with silica nanoparticles… read more here.
Keywords: effective refractive; enhancement effective; medium; index ... See more keywords
Systematic design of broadband path-coiling acoustic metamaterials
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5009488
Abstract: A design approach for acoustic metamaterial unit cells based on a coiled path with impedance matching layers (IMLs) is proposed in this paper. A theoretical approach is developed to calculate the transmission of the labyrinthine… read more here.
Keywords: transmission; effective refractive; unit cells; refractive indices ... See more keywords
Effective medium theory for electron waves in a gate-defined quantum dot array in graphene
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.045422
Abstract: We develop the effective medium theory (EMT) to calculate the effective ``refractive index'' of quantum dot array for electron waves in graphene. It can be used to design electron metamaterials which will control the flow… read more here.
Keywords: effective medium; theory; medium theory; electron ... See more keywords
Visible-light metalens far-field nanofocusing effects with active tuning of focus based on MIM subwavelength structures used in an integrated imaging array.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.444729
Abstract: We propose a structure of a far-field nanofocusing metalens with focal shifting that is actively tuned at visible wavelengths. Surface plasmon polaritons (SPPs) can be excited by the metal-insulator-metal (MIM) subwavelength structure at visible wavelengths.… read more here.
Keywords: field nanofocusing; refractive index; effective refractive; mim subwavelength ... See more keywords
Distributed measurement of mode group effective refractive index difference in a few mode optical fibers.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.455782
Abstract: The possibility to perform distributed measurements of the effective refractive index difference between distinct modes in few mode optical fibers is demonstrated using phase sensitive optical time domain reflectometry. Effective refractive index differences between LP02,… read more here.
Keywords: index difference; refractive index; mode optical; effective refractive ... See more keywords
Optical forces through the effective refractive index.
Sign Up to like & getrecommendations! Published in 2017 at "Optics letters"
DOI: 10.1364/ol.42.004371
Abstract: Energy-based methods such as the dispersion relation (DR) and response theory of optical forces (RTOF) have been largely applied to obtain the optical forces in the nano-optomechanical devices, in contrast to the Maxwell stress tensor… read more here.
Keywords: index; effective refractive; optical forces; forces effective ... See more keywords
Tunable Fabry-Perot interferometer operated in the terahertz range based on an effective refractive index control using pitch-variable subwavelength gratings.
Sign Up to like & getrecommendations! Published in 2024 at "Optics letters"
DOI: 10.1364/ol.515504
Abstract: We constructed a tunable Fabry-Perot interferometer (FPI) by controlling the effective refractive index of pitch-variable subwavelength gratings (PV-SWGs) that were incorporated into an FP cavity. The period of the PV-SWG can be varied to change… read more here.
Keywords: effective refractive; fabry perot; tunable fabry; refractive index ... See more keywords
Comparison between Periodicity and Randomness from an Effective Refractive Index Point of View; Applicable to thin-film Solar Cells
Sign Up to like & getrecommendations! Published in 2017 at "Scientia Iranica"
DOI: 10.24200/sci.2017.4596
Abstract: In this paper, embedding plasmonic nanoparticles inside the solar cell’s active layer both in a periodic and a random manner is extensively investigated. The reason behind this study is to investigate optical mechanisms inside the… read more here.
Keywords: periodicity; effective refractive; solar cell; randomness ... See more keywords
Measurement of the Effective Refractive Index of Suspensions Containing 5 µm Diameter Spherical Polystyrene Microparticles by Surface Plasmon Resonance and Scattering
Sign Up to like & getrecommendations! Published in 2025 at "Chemosensors"
DOI: 10.3390/chemosensors13070257
Abstract: Microplastics (MP) have been found not only in the environment but also in living beings, including humans. As an initial step in MP detection, a method is proposed to measure the effective refractive index of… read more here.
Keywords: effective refractive; diameter spherical; resonance; index ... See more keywords