Zobrazeno 1 - 10
of 54
pro vyhledávání: '"N. Skivesen"'
Autor:
Robert Horvath, N. Skivesen, Jan S. Hesthaven, Per Michael Johansen, Lucas C. Wilcox, Henrik Chresten Pedersen
Publikováno v:
Applied Physics B. 81:65-73
The in-coupling process for grating-coupled planar optical waveguide sensors is investigated in the case of TE waves. A simple analytical model based on the Rayleigh-Fourier-Kiselev method is applied to take into account the depth of the grating coup
Publikováno v:
Sensors and Actuators B: Chemical. 106:668-676
The present paper deals with the optimization of metal-clad waveguides for sensor applications to achieve high sensitivity for adlayer and refractive index measurements. By using the Fresnel reflection coefficients both the angular shift and the widt
Publikováno v:
Journal of Micromechanics and Microengineering. 15:1260-1264
Reverse symmetry waveguide biosensors employ substrates with a refractive index less than the analyzed aqueous cover sample (1.33). This design offers higher sensitivities for detecting micron scale biological objects such as bacteria and living cell
Autor:
N. Skivesen, Per Morgen, Kjeld Møller Pedersen, P. K. Kristensen, Z. Li, Søren Vrønning Hoffmann, Jens Rafaelsen, Thomas Garm Pedersen
Publikováno v:
Thin Solid Films. 443:78-83
Thin Al films on Si(1 1 1) have been investigated by optical second-harmonic generation (SHG) in combination with synchrotron radiation photoemission spectroscopy. Valence band spectra show quantization of the Al sp-band in the energy range from the
Autor:
N. Skivesen, Søren Vrønning Hoffmann, Jens Rafaelsen, Kjeld Møller Pedersen, Thomas Garm Pedersen, Zhongshan Li, Peter Kristensen
Publikováno v:
Surface Science. 516:127-133
Recently, it has become possible to grow extremely high quality metallic quantum wells on semiconductor substrates showing coherent coupling across the interface. In the present work, a simple tight-binding model of such structures is applied to Al/S
Publikováno v:
Applied Physics Letters. 84:4044-4046
An alternative transduction mechanism for planar optical waveguide sensors is reported. Based on a simple measurement of the mode intensity, the presented transduction is an interesting alternative to the conventional mode-angle transduction, because
Autor:
Kjeld Møller Pedersen, Zhongshan Li, Per Morgen, Jakob Kjelstrup-Hansen, U. Robenhagen, J M Jensen, N. Skivesen, J.F. Andersen
Publikováno v:
Morgen, P, Skivesen, N, Jensen, J M, Robenhagen, U, Andersen, J, Hansen, J K, Li, Z & Pedersen, K 2004, ' Oxidation Properties of Al-Nanostructures on Si Surfaces ', Physica Scripta, vol. T114, pp. 164-166 . https://doi.org/10.1088/0031-8949/2004/T114/041
Al2O3 is a dielectric material with a higher κ-value than SiO2 and thus a potential gate insulator material in future generations of silicon based complementary metalinsulatorsemiconductor devices. A recent report by Guha et al. 1 established the gr
Publikováno v:
Integrated Analytical Systems ISBN: 9780387980607
Typical evanescent wave biosensors generate an electromagnetic wave at the sensor surface that penetrates 100–200 nm into the analysed medium. This has proven to be a highly sensitive tool to monitor refractive index changes in the close vicinity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b3f80a1121c220c878d91cf57f48a33
https://doi.org/10.1007/978-0-387-98063-8_15
https://doi.org/10.1007/978-0-387-98063-8_15
Autor:
N. Skivesen, Tony Khoury, John Canning, Tze Jing Sum, Cicero Martelli, Brant C. Gibson, Martin Kristensen, Maxwell J. Crossley, Chiara Neto, George Huyang
Publikováno v:
Canning, J, Huyang, G, Gibson, B C, Neto, C, Khoury, T, Martelli, C, Skivesen, N, Sum, T J, Kristensen, M & Crossley, M J 2009, Supramolecular porphyrin wires and post-processing . in Optoelectronics and Communications Conference . IEEE, Hong Kong, Hong Kong, 13/07/2009 . https://doi.org/10.1109/OECC.2009.5218375
Self-assembled porphyrin wires are fabricated using various nitroporphyrin molecular units. 5-nitro-10,15,20-triheptylporphyrin is found to give the greatest optical transparency and straights wires. A focused ion beam (FIB) is used to demonstrate mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49762b1a4aee89e6140a54605020d258
https://pure.au.dk/portal/da/publications/supramolecular-porphyrin-wires-and-postprocessing(926e4820-16ef-11df-b95d-000ea68e967b).html
https://pure.au.dk/portal/da/publications/supramolecular-porphyrin-wires-and-postprocessing(926e4820-16ef-11df-b95d-000ea68e967b).html
Autor:
Martin Kristensen, G. Shu, Chiara Neto, C. Marelli, Tze Jing Sum, Tony Khoury, N. Skivesen, Maxwell J. Crossley, John Canning, M.B. Vovgaard
Publikováno v:
LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society.
Long porphyrin molecular wires presenting optical transparency and light diffraction are fabricated and characterized using optical and atomic force microscopy. The development of dual photonic/electronic self-assembled devices is discussed.