Zobrazeno 1 - 10
of 338
pro vyhledávání: '"Seppo Honkanen"'
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 13, Iss 1, Pp 1-8 (2017)
Abstract Background Channel waveguides have been developed for years to comply with the need for smaller footprint and better integration in photonics circuits. However, they are still suffering from fabrication complexity and optical losses. These t
Externí odkaz:
https://doaj.org/article/6c28111dfe8d489fad64d82b551043ec
Autor:
Jean-Emmanuel Broquin, Seppo Honkanen
Publikováno v:
Applied Sciences, Vol 11, Iss 10, p 4472 (2021)
Ion-exchange on glass is one of the major technological platforms that are available to manufacture low-cost, high performance Planar Lightwave Circuits (PLC). In this paper, the principle of ion-exchanged waveguide realization is presented. Then a r
Externí odkaz:
https://doaj.org/article/50ce9ab03694459abcbefe401e745abd
Publikováno v:
Nanomaterials, Vol 5, Iss 2, Pp 792-803 (2015)
We investigate the optical and thermo-optical properties of amorphous TiO\(_2\)–Al\(_2\)O\(_3\) thin-film bilayers fabricated by atomic layer deposition (ALD). Seven samples of TiO\(_2\)–Al\(_2\)O\(_3\) bilayers are fabricated by growing Al\(_2\)
Externí odkaz:
https://doaj.org/article/9b62d7fa555a480580acba781d6c7c71
Autor:
Seppo Honkanen, Jean-Emmanuel Broquin
Publikováno v:
Applied Sciences, Vol 11, Iss 4472, p 4472 (2021)
Ion-exchange on glass is one of the major technological platforms that are available to manufacture low-cost, high performance Planar Lightwave Circuits (PLC). In this paper, the principle of ion-exchanged waveguide realization is presented. Then a r
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
Scientific Reports
Scientific Reports
We present a method for fabricating buried nanostructures by growing a dielectric cover layer on a corrugated surface profile by atomic layer deposition of TiO2. Selecting appropriate process parameters, the conformal growth of TiO2 results in a smoo
Autor:
Seppo Honkanen, Johan Bobacka, Jyrki M. Mäkelä, Martti Toivakka, Erkki Eerola, Muhammad Saleem, Kofi J. Brobbey, Rizwan Ali, Janne Haapanen, Jarkko J. Saarinen, Marianne Gunell
Publikováno v:
Thin Solid Films. 645:166-172
Silver nanoparticles are widely used as antibacterial agents in consumer products. There have been concerns about the environmental exposure and their toxic effect to organisms such as fish. Studies have quantified the release of silver from various
Publikováno v:
Optics Communications. 499:127310
An optical fiber amplifier based on a tapered fiber coated with PbS quantum dots (QDs) loaded into mesoporous silica nanoparticles (MSNs) is proposed. The fabricated amplifier shows enhanced gain due to loading QDs into MSNs, which significantly incr
Publikováno v:
Journal of the European Optical Society-Rapid Publications, Vol 13, Iss 1, Pp 1-8 (2017)
Background Channel waveguides have been developed for years to comply with the need for smaller footprint and better integration in photonics circuits. However, they are still suffering from fabrication complexity and optical losses. These two limita
Publikováno v:
Journal of Luminescence. 226:117411
Influence of Na+-Ag+ low-temperature ion exchange and subsequent heat treatment durations on the spectral-luminescent properties of silver molecular clusters formed in antimony-doped photo-thermo-refractive (PTR) glass matrix was studied. The ion exc
Autor:
Jyrki Saarinen, Matthieu Roussey, Sanna Aikio, Marianne Hiltunen, Jussi Hiltunen, Leila Ahmadi, Seppo Honkanen, Petri Stenberg
Publikováno v:
Ahmadi, L, Hiltunen, M, Stenberg, P, Hiltunen, J, Aikio, S, Roussey, M, Saarinen, J & Honkanen, S 2016, ' Hybrid layered polymer slot waveguide Young interferometer ', Optics Express, vol. 24, no. 10, pp. 10275-10285 . https://doi.org/10.1364/OE.24.010275
We demonstrate a polymer slot waveguide Young interferometer coated with a bilayer of Al2O3/TiO2. The approach enables relaxed dimensions of the polymer waveguide which simplifies the fabrication of the structure with a resolution of 50 nm. The layer