Optical gas sensing in the mid-IR using suspended silicon waveguides

Autor: Floria Ottonello-Briano, Henrik Rödjegård, Hans Martin, Carlos Errando-Herranz, Hans Sohlström, Kristinn B. Gylfason

Publikováno v: Integrated Optics: Devices, Materials, and Technologies XXV.

Optical spectroscopy is among the most important chemical analysis techniques, due to its high specificity and long-term stability. For spectroscopic analysis of gas compositions, the mid infrared (mid-IR) region is particularly important, owing to t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8546c9dddf511dce5368d3cfd258858
https://doi.org/10.1117/12.2580648

Carbon Dioxide Sensing with Low-confinementHigh-sensitivity Mid-IR SiliconWaveguides

Autor: Floria Ottonello-Briano, Carlos Errando-Herranz, Henrik Rodjegåd, Hans Martin, Hans Sohlström, Kristinn B. Gylfason

We present a low-confinement Si waveguide for 4.26 μm wavelength and applyit to sense CO2 concentrations down to 0.1 %. We demonstrate the highest reportedwaveguide sensitivity to CO2: 44% of the free-space sensitivity. QC 20190802

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb9744d9763aee216a9ba63517e9f129
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-253841

Carbon dioxide absorption spectroscopy with a mid-infrared silicon photonic waveguide

Autor: Henrik Rödjegård, Floria Ottonello-Briano, Kristinn B. Gylfason, Hans Sohlström, Hans Martin, Carlos Errando-Herranz

Publikováno v: Optics Letters. 45:109

Carbon dioxide is a vital gas for life on Earth, a waste product of human activities, and widely used in agriculture and industry. Its accurate sensing is therefore of great interest. Optical sensors exploiting the mid-infrared light absorption of CO

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d312a88bdef0f10230c313574096a036
https://doi.org/10.1364/ol.45.000109

Dye-based photonic sensing systems

Autor: Francisco J. Sanza, Santiago Cáceres, Fabian Dortu, Martin Lapisa, Rafael Casquel, Angel Barranco, Damien Bernier, Amadeu Griol, Agustín R. González-Elipe, Frank Niklaus, Miguel Holgado, Hans Sohlström, Francisco J. Aparicio, Maria Alcaire, Mikael Antelius

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia

[EN] We report on dye-based photonic sensing systems which are fabricated and packaged at wafer scale. For the first time luminescent organic nanocomposite thin-films deposited by plasma technology are integrated in photonic sensing systems as active

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c51dfd0eef0410ad1d80932a9f3203c7
http://hdl.handle.net/10261/191110

A sub-μs thermal time constant electrically driven Pt nanoheater: thermo-dynamic design and frequency characterization

Autor: Snorri Ingvarsson, Göran Stemme, Floria Ottonello Briano, Pauline Renoux, Hans Sohlström, Fredrik Forsberg, Kristinn B. Gylfason

Publikováno v: Applied Physics Letters. 108:193106

Metal nanowires can emit coherent polarized thermal radiation, work as uncooled bolometers, and provide localized heating. In this paper, we engineer the temperature dynamics of electrically driven Pt nanoheaters on a silicon-on-insulator substrate.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::730409f4d21d30eef4793ded50f56470
https://doi.org/10.1063/1.4948979