{"type": "FeatureCollection", "features": [{"id": "PMC11468586", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:27:06Z", "type": "Journal Article", "created": "2021-09-08", "title": "Wafer\u2010Scale Functional Metasurfaces for Mid\u2010Infrared Photonics and Biosensing", "description": "Abstract<p>Metasurfaces have emerged as a breakthrough platform for manipulating light at the nanoscale and enabling on\uffe2\uff80\uff90demand optical functionalities for next\uffe2\uff80\uff90generation biosensing, imaging, and light\uffe2\uff80\uff90generating photonic devices. However, translating this technology to practical applications requires low\uffe2\uff80\uff90cost and high\uffe2\uff80\uff90throughput fabrication methods. Due to the limited choice of materials with suitable optical properties, it is particularly challenging to produce metasurfaces for the technologically relevant mid\uffe2\uff80\uff90infrared spectral range. These constraints are overcome by realizing functional metasurfaces on almost completely transparent free\uffe2\uff80\uff90standing metal\uffe2\uff80\uff90oxide membranes. A versatile nanofabrication process is developed and implemented for highly efficient dielectric and plasmonic mid\uffe2\uff80\uff90infrared metasurfaces with wafer\uffe2\uff80\uff90scale and complementary metal\uffe2\uff80\uff93oxide\uffe2\uff80\uff93semiconductor (CMOS)\uffe2\uff80\uff90compatible manufacturing techniques. The advantages of this method are revealed by demonstrating highly uniform and functional metasurfaces, including high\uffe2\uff80\uff90Q structures enabling fine spectral selectivity, large\uffe2\uff80\uff90area metalenses\uffc2\uffa0with\uffc2\uffa0diffraction\uffe2\uff80\uff90limited focusing capabilities, and birefringent metasurfaces providing polarization control at record\uffe2\uff80\uff90high conversion efficiencies.\uffc2\uffa0 Aluminum plasmonic devices and their integration into microfluidics for real\uffe2\uff80\uff90time and label\uffe2\uff80\uff90free mid\uffe2\uff80\uff90infrared biosensing of proteins and lipid vesicles are further demonstrated. The versatility of this approach and its compatibility with mass\uffe2\uff80\uff90production processes bring infrared metasurfaces markedly closer to commercial applications, such as thermal imaging, spectroscopy, and biosensing.</p", "keywords": ["Optics and Photonics", "Semiconductors", "Infrared Rays", "Surface Properties", "Biosensing Techniques", "02 engineering and technology", "0210 nano-technology", "7. Clean energy", "Research Articles", "Aluminum", "Nanostructures"], "contacts": [{"organization": "Leitis, Aleksandrs, Tseng, Ming Lun, John\u2010Herpin, Aurelian, Kivshar, Yuri S., Altug, Hatice,", "roles": ["creator"]}]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/adma.202102232"}, {"href": "https://doi.org/PMC11468586"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Advanced%20Materials", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "PMC11468586", "name": "item", "description": "PMC11468586", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PMC11468586"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-09-07T00:00:00Z"}}, {"id": "10.1002/adma.202102232", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:00Z", "type": "Journal Article", "created": "2021-09-08", "title": "Wafer\u2010Scale Functional Metasurfaces for Mid\u2010Infrared Photonics and Biosensing", "description": "Abstract<p>Metasurfaces have emerged as a breakthrough platform for manipulating light at the nanoscale and enabling on\uffe2\uff80\uff90demand optical functionalities for next\uffe2\uff80\uff90generation biosensing, imaging, and light\uffe2\uff80\uff90generating photonic devices. However, translating this technology to practical applications requires low\uffe2\uff80\uff90cost and high\uffe2\uff80\uff90throughput fabrication methods. Due to the limited choice of materials with suitable optical properties, it is particularly challenging to produce metasurfaces for the technologically relevant mid\uffe2\uff80\uff90infrared spectral range. These constraints are overcome by realizing functional metasurfaces on almost completely transparent free\uffe2\uff80\uff90standing metal\uffe2\uff80\uff90oxide membranes. A versatile nanofabrication process is developed and implemented for highly efficient dielectric and plasmonic mid\uffe2\uff80\uff90infrared metasurfaces with wafer\uffe2\uff80\uff90scale and complementary metal\uffe2\uff80\uff93oxide\uffe2\uff80\uff93semiconductor (CMOS)\uffe2\uff80\uff90compatible manufacturing techniques. The advantages of this method are revealed by demonstrating highly uniform and functional metasurfaces, including high\uffe2\uff80\uff90Q structures enabling fine spectral selectivity, large\uffe2\uff80\uff90area metalenses\uffc2\uffa0with\uffc2\uffa0diffraction\uffe2\uff80\uff90limited focusing capabilities, and birefringent metasurfaces providing polarization control at record\uffe2\uff80\uff90high conversion efficiencies.\uffc2\uffa0 Aluminum plasmonic devices and their integration into microfluidics for real\uffe2\uff80\uff90time and label\uffe2\uff80\uff90free mid\uffe2\uff80\uff90infrared biosensing of proteins and lipid vesicles are further demonstrated. The versatility of this approach and its compatibility with mass\uffe2\uff80\uff90production processes bring infrared metasurfaces markedly closer to commercial applications, such as thermal imaging, spectroscopy, and biosensing.</p", "keywords": ["Optics and Photonics", "Semiconductors", "Infrared Rays", "Surface Properties", "Biosensing Techniques", "02 engineering and technology", "0210 nano-technology", "7. Clean energy", "Research Articles", "Aluminum", "Nanostructures"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/adma.202102232"}, {"href": "https://doi.org/10.1002/adma.202102232"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Advanced%20Materials", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/adma.202102232", "name": "item", "description": "10.1002/adma.202102232", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/adma.202102232"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-09-07T00:00:00Z"}}, {"id": "10.1016/j.optmat.2025.117551", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:35Z", "type": "Journal Article", "created": "2025-09-24", "title": "Er3+/Yb3+ co-activated YNbO4 nanocrystalline phosphors: Up-conversion luminescence under the 980\u00a0nm excitation and integrated lifetime thermometry", "description": "This paper presents the structure, morphology, optical and photoluminescent properties of erbium (1 at %) and ytterbium (2 at %) doped yttrium niobium oxide (YNbO<inf>4</inf>) as a potential temperature sensor material. Obtained powder samples of fergusonite-\u03b2-like monoclinic crystalline structure of YNbO<inf>4</inf>, confirmed by X-ray diffraction analysis, showed particles of about 1\u20133 \u03bcm in size. Photoluminescence emissions were detected in the visible (Vis) and near-infrared (NIR) regions after excitation at 980 nm as a result of the energy up-conversion (UC) process. The lifetime of the most intense Er<sup>3+</sup> excited state <sup>4</sup>S<inf>3/2</inf> level measured at 300 K was 0.238 ms. Thermometric properties were recorded at different temperatures and analyzed for the first time using the luminescence emission decay method. The relative sensitivity decreases from 0.23 % to 0.085 % K<sup>\u22121</sup>, by varying the temperature from 300 to 600 K, indicating a good potential of this material for lifetime-based phosphor thermometry.", "keywords": ["Luminescence", "Powder processing", "Semiconductors", "Temperature sensing", "Nanocrystalline microstructure"], "contacts": [{"organization": "Tamara B. Iveti\u0107, Boris Banjac, Ljubica \u0110a\u010danin Far, Dragana \u0160trbac, Zoran Risti\u0107,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.optmat.2025.117551"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Optical%20Materials", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.optmat.2025.117551", "name": "item", "description": "10.1016/j.optmat.2025.117551", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.optmat.2025.117551"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2026-01-01T00:00:00Z"}}, {"id": "3198887158", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:25:17Z", "type": "Journal Article", "created": "2021-09-08", "title": "Wafer\u2010Scale Functional Metasurfaces for Mid\u2010Infrared Photonics and Biosensing", "description": "Abstract<p>Metasurfaces have emerged as a breakthrough platform for manipulating light at the nanoscale and enabling on\uffe2\uff80\uff90demand optical functionalities for next\uffe2\uff80\uff90generation biosensing, imaging, and light\uffe2\uff80\uff90generating photonic devices. However, translating this technology to practical applications requires low\uffe2\uff80\uff90cost and high\uffe2\uff80\uff90throughput fabrication methods. Due to the limited choice of materials with suitable optical properties, it is particularly challenging to produce metasurfaces for the technologically relevant mid\uffe2\uff80\uff90infrared spectral range. These constraints are overcome by realizing functional metasurfaces on almost completely transparent free\uffe2\uff80\uff90standing metal\uffe2\uff80\uff90oxide membranes. A versatile nanofabrication process is developed and implemented for highly efficient dielectric and plasmonic mid\uffe2\uff80\uff90infrared metasurfaces with wafer\uffe2\uff80\uff90scale and complementary metal\uffe2\uff80\uff93oxide\uffe2\uff80\uff93semiconductor (CMOS)\uffe2\uff80\uff90compatible manufacturing techniques. The advantages of this method are revealed by demonstrating highly uniform and functional metasurfaces, including high\uffe2\uff80\uff90Q structures enabling fine spectral selectivity, large\uffe2\uff80\uff90area metalenses\uffc2\uffa0with\uffc2\uffa0diffraction\uffe2\uff80\uff90limited focusing capabilities, and birefringent metasurfaces providing polarization control at record\uffe2\uff80\uff90high conversion efficiencies.\uffc2\uffa0 Aluminum plasmonic devices and their integration into microfluidics for real\uffe2\uff80\uff90time and label\uffe2\uff80\uff90free mid\uffe2\uff80\uff90infrared biosensing of proteins and lipid vesicles are further demonstrated. The versatility of this approach and its compatibility with mass\uffe2\uff80\uff90production processes bring infrared metasurfaces markedly closer to commercial applications, such as thermal imaging, spectroscopy, and biosensing.</p", "keywords": ["Optics and Photonics", "Semiconductors", "Infrared Rays", "Surface Properties", "Biosensing Techniques", "02 engineering and technology", "0210 nano-technology", "7. Clean energy", "Research Articles", "Aluminum", "Nanostructures"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/adma.202102232"}, {"href": "https://doi.org/3198887158"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Advanced%20Materials", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "3198887158", "name": "item", "description": "3198887158", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/3198887158"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-09-07T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Semiconductors&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Semiconductors&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Semiconductors&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Semiconductors&offset=4", "hreflang": "en-US"}], "numberMatched": 4, "numberReturned": 4, "distributedFeatures": [], "timeStamp": "2026-05-25T08:49:54.362242Z"}