D
Danny Noordegraaf
Researcher at Technical University of Denmark
Publications - 36
Citations - 1495
Danny Noordegraaf is an academic researcher from Technical University of Denmark. The author has contributed to research in topics: Photonic-crystal fiber & Fiber laser. The author has an hindex of 15, co-authored 36 publications receiving 1400 citations.
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Journal ArticleDOI
Photonic crystal fiber based evanescent-wave sensor for detection of biomolecules in aqueous solutions
Jesper Bevensee Jensen,Lars Pedersen,Poul E. Hoiby,Lars Bjarne Nielsen,T.P. Hansen,Jacob Riis Folkenberg,Jesper Riishede,Danny Noordegraaf,Kristian Nielsen,Anneline Carlsen,Anders Bjarklev +10 more
TL;DR: It is demonstrated that highly efficient evanescent-wave detection of fluorophore-labeled biomolecules in aqueous solutions positioned in the air holes of the microstructured part of a photonic crystal fiber even at wavelengths in the visible range is demonstrated.
Journal ArticleDOI
Selective filling of Photonic Crystal Fibres
TL;DR: In this article, a model for calculating the time necessary for filling one or more specific holes in a photonic crystal fiber is made, which is verified for water and its enabling potential is illustrated by a polymer application.
Journal ArticleDOI
Efficient multi-mode to single-mode coupling in a photonic lantern.
TL;DR: The fabricated photonic lantern has a coupling loss for a MM to SM tapered transition of only 0.32 dB which proves the feasibility of the technology and demonstrates efficient and reversible coupling between a MM fiber and a number of SM fibers.
Journal ArticleDOI
Hexabundles: imaging fiber arrays for low-light astronomical applications
Joss Bland-Hawthorn,Julia J. Bryant,Gordon Robertson,Peter Gillingham,John O'Byrne,Gerald Cecil,Roger Haynes,Scott M. Croom,Simon Ellis,Martin D. Maack,Peter M. W. Skovgaard,Danny Noordegraaf +11 more
TL;DR: A novel imaging fiber bundle ("hexabundle") that is suitable for low-light applications in astronomy and finds the important result that the cladding can be reduced to ~2 μm over the short fuse length, well below the conventional ~10λ thickness employed more generally.
Journal ArticleDOI
Electrically and mechanically induced long period gratings in liquid crystal photonic bandgap fibers
Danny Noordegraaf,Lara Scolari,Jesper Lægsgaard,Lars Henning Rindorf,Thomas Tanggaard Alkeskjold +4 more
TL;DR: Elect electrically and mechanically induced long period gratings in a photonic crystal fiber (PCF) filled with a high-index liquid crystal and a high polarization dependent loss of the induced gratings are observed.