Infrared Glass–Ceramics with Multidispersion and Gradient Refractive Index Attributes
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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
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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
Polarizable H‐Bond Concept in Aromatic Poly(thiourea)s: Unprecedented High Refractive Index, Transmittance, and Degradability at Force to Enhance Lighting Efficiency
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202404433
Abstract: Developing transparent and highly refractive environmentally friendly polymers has not been realized yet toward sustainable optoelectronics. This work describes poly(thiourea)s (PTUs) design following a new “polarizable group synergy” concept, combining highly polarizable hydrogen bonding groups… read more here.
Keywords: poly thiourea; refractive index; bond; high refractive ... See more keywords
Humidity‐Induced Decolorization of 1D Photonic Multilayers for Anti‐Counterfeiting Applications
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DOI: 10.1002/adfm.202412679
Abstract: Herein, a new concept is proposed for the humidity‐induced disappearance of the photonic stop band (PSB) in multilayer films of 1D photonic crystals (PCs). These films are fabricated via alternating spin‐coating of photo‐cross‐linkable high and… read more here.
Keywords: psb; humidity; anti counterfeiting; refractive index ... See more keywords
Integrated Metallo‐Dielectric 3D Hotspots From High Refractive Index Nanodiamond‐Plasmonic Gold Cryosoret Nano‐Assemblies for Photonic Crystal Enhanced Fluorescence
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202512295
Abstract: Hybridizing fluorescent reporters with gold nanoparticles (AuNPs) presents challenges associated with surface‐induced quenching in the “zone of inactivity,” compromising the functionality of related point‐of‐care diagnostic tools. Nano‐assembly of high refractive index (HRI) dielectric and plasmonic… read more here.
Keywords: metallo dielectric; nano assemblies; photonic crystal; high refractive ... See more keywords
Fundamental Limits to the Refractive Index of Transparent Optical Materials.
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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
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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
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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
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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
Synthesis of High Refractive Index Polymer Thin Films for Soft, Flexible Optics Through Halomethane Quaternization of Poly(4‐Vinylpyridine)
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DOI: 10.1002/adom.202302201
Abstract: Applications in soft, flexible optical, and optoelectronic applications demand polymer thin film coatings that can accommodate substantial physical deformations. The preparation of high refractive index polymers (HRIPs) through the quaternization of poly(4‐vinylpyridine) (P4VP) thin films… read more here.
Keywords: spectroscopy; thin films; optics; quaternization ... See more keywords
Optimization of the Bulk Refractive Index Sensitivity of Silver NanoPrisms
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DOI: 10.1002/adom.202302967
Abstract: The sensitivity and optical properties of silver nanoprisms (triangular plates with round‐truncated corners) are investigated in this paper. Results of boundary element method simulations are compared with experimental results and literature data. Based on electron… read more here.
Keywords: silver nanoprisms; model; sensitivity; bulk refractive ... See more keywords