Infrared Glass–Ceramics with Multidispersion and Gradient Refractive Index Attributes
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201902217
Abstract: Infrared (IR) glass–ceramics (GCs) hold the potential to dramatically expand the range of optical material solutions available for use in bulk and planar optical systems in the IR. Current material solutions are limited to single‐… read more here.
Keywords: gradient; glass; refractive index; infrared glass ... See more keywords
Temperature‐Controlled Optical Activity and Negative Refractive Index
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202010249
Abstract: Chiral media exhibit optical activity, which manifests itself as differential retardation and attenuation of circularly polarized electromagnetic waves of opposite handedness. This effect can be described by different refractive indices for left- and right-handed waves… read more here.
Keywords: temperature; structure; optical activity; activity ... See more keywords
Fundamental Limits to the Refractive Index of Transparent Optical Materials.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202103946
Abstract: Increasing the refractive index available for optical and nanophotonic systems opens new vistas for design, for applications ranging from broadband metalenses to ultrathin photovoltaics to high-quality-factor resonators. In this work, fundamental limits to the refractive… read more here.
Keywords: index; materials fundamental; dispersion; fundamental limits ... See more keywords
High‐Q Nanophotonics over the Full Visible Spectrum Enabled by Hexagonal Boron Nitride Metasurfaces
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202209688
Abstract: All‐dielectric optical metasurfaces with high quality (Q) factors have been hampered by the lack of simultaneously lossless and high‐refractive‐index materials over the full visible spectrum. In fact, the use of low‐refractive‐index materials is unavoidable for… read more here.
Keywords: index; visible spectrum; refractive index; metasurfaces high ... See more keywords
Metastable Refractive Index Manipulation in Hydrogenated Amorphous Silicon for Reconfigurable Photonics
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Optical Materials"
DOI: 10.1002/adom.201901680
Abstract: Hydrogenated amorphous silicon (a‐Si:H) is known for exhibiting light‐induced metastable properties that are reversible upon annealing. While these are commonly associated with the well‐known deleterious Staebler–Wronski effect in the field of thin‐film silicon solar cells,… read more here.
Keywords: metastable refractive; hydrogenated amorphous; silicon; amorphous silicon ... See more keywords
Monolithic Chalcogenide Optical Nanocomposites Enable Infrared System Innovation: Gradient Refractive Index Optics
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Optical Materials"
DOI: 10.1002/adom.202000150
Abstract: The size and weight of conventional imaging systems is defined by costly non‐planar lenses and the complex lens assemblies required to minimize optical aberrations. The ability to engineer gradient refractive index (GRIN) optics has the… read more here.
Keywords: optics; refractive index; gradient refractive; monolithic chalcogenide ... See more keywords
High Refractive Index, Enantiopure Silicones Based on BINOL.
Sign Up to like & getrecommendations! Published in 2022 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202200022
Abstract: The high refractive index aromatic compound, binaphthol (BINOL), is readily incorporated into silicone polymer chains using the Piers-Rubinsztajn reaction; alternating and random linear copolymers, and elastomers are available. The highest refractive index (RI) materials were… read more here.
Keywords: silicones based; refractive index; index enantiopure; index ... See more keywords
A multi‐cavity fiber‐optic device for refractive index measurement
Sign Up to like & getrecommendations! Published in 2017 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.30310
Abstract: We model a multi-cavity optical device composed of fiber Bragg gratings. The sensitivity of the device for refractive index measurement is extracted from the change in its free-spectral range, rendering the sensor robust to small… read more here.
Keywords: index measurement; refractive index; device refractive; multi cavity ... See more keywords
Gain enhancement of circular waveguide antennas using near‐zero index metamaterials
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.31839
Abstract: In this article, a rigorous analytical methodology is introduced for designing near-zero refractive index metamaterials (NZIMs). Our proposed NZIM media is realized by three stacked layers of perforated metallic surfaces, each layer composed of a… read more here.
Keywords: enhancement circular; index; index metamaterials; gain enhancement ... See more keywords
Numerical modeling the propagation path of radio waves with atmospheric refractivity
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32202
Abstract: The meteorological elements will affect the propagation of the radio wave. These meteorological elements can be reflected by the atmospheric refractive index, which is derived from the pressure, temperature, relative humidity, and vapor pressure. Using… read more here.
Keywords: propagation; refractive index; propagation path; model ... See more keywords
A vertical DIM lidar for refractive index structure parameter profiles estimation in low‐layer atmosphere
Sign Up to like & getrecommendations! Published in 2023 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.33690
Abstract: This Letter presents an experimental demonstration of a vertical differential image motion (DIM) lidar for calculating the profiles of the low‐layer atmospheric refractive index structure parameters. Utilizing the differences between weighting functions, we propose a… read more here.
Keywords: low layer; refractive index; index structure; dim lidar ... See more keywords