O
Ole Albrektsen
Researcher at University of Southern Denmark
Publications - 38
Citations - 1787
Ole Albrektsen is an academic researcher from University of Southern Denmark. The author has contributed to research in topics: Plasmon & Surface plasmon. The author has an hindex of 17, co-authored 38 publications receiving 1645 citations. Previous affiliations of Ole Albrektsen include Maersk.
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Gap plasmon-based metasurfaces for total control of reflected light
TL;DR: The presented approach establishes a new class of compact optical components, viz., plasmonic metasurfaces with controlled gradient birefringence, with no dielectric counterparts, and can straightforwardly be adapted to realise new optical components with hitherto inaccessible functionalities.
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Subwavelength plasmonic color printing protected for ambient use.
TL;DR: It is demonstrated that, due to inherent stability of GPRs with respect to surfactants, the fabricated color print can be protected with a transparent dielectric overlay for ambient use without destroying its coloring.
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Efficient absorption of visible radiation by gap plasmon resonators
TL;DR: A periodic array of differently-sized and circularly-shaped gap plasmon resonators (GPRs) with the average absorption ~94% for unpolarized light in the entire visible wavelength range are demonstrated.
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Plasmonic metamaterial wave retarders in reflection by orthogonally oriented detuned electrical dipoles
Anders Pors,Michael Grøndahl Nielsen,Giuseppe Della Valle,Morten Willatzen,Ole Albrektsen,Sergey I. Bozhevolnyi +5 more
TL;DR: It is demonstrated that a pair of perpendicular electrical dipolar scatterers resonating at different frequencies can be used as a metamaterial unit cell to construct a nanometer-thin retarder in reflection.
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Continuous layer gap plasmon resonators.
Michael Grøndahl Nielsen,Dmitri K. Gramotnev,Anders Pors,Ole Albrektsen,Sergey I. Bozhevolnyi +4 more
TL;DR: It is demonstrated both theoretically and experimentally that a gold nanostrip supported by a thin dielectric (silicon dioxide) film and a gold underlay forms an efficient (Fabry-Perot) resonator for gap surface plasmons.