Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Léon A. Woldering"'
Publikováno v:
Physica status solidi A, 10(2), 176-184. Wiley-VCH Verlag
Today's micro- and nano-fabrication is essentially two-dimensional, with very limited possibilities of accessing the third dimension. The most viable way to mass-fabricate functional structures at the nano-scale, such as electronics or MEMS, with equ
Publikováno v:
Thin solid films, 592(Part A), 69-75. Elsevier
The mechanical properties of phase change materials alter when the phase is transformed. In this paper, we report on experiments that determine the change in crucial parameters such as Young's modulus and residual stress for two of the most widely em
Autor:
Jaap Kokorian, H. Nazeer, J. de Vries, Leon Abelmann, Johannes Bernardus Charles Engelen, Léon A. Woldering
Publikováno v:
Thin solid films, 550, 298-304. Elsevier
In this paper we present a method to deposit thin films of bismuth with sub-nanometer surface roughness for application to diamagnetic levitation. Evaporated films of bismuth have a high surface roughness with peak to peak values in excess of 100 nm
Autor:
R. W. Tjerkstra, J.M. van den Broek, Irwan Dani Setija, Willem L. Vos, Franciscus B. Segerink, Léon A. Woldering
Publikováno v:
Advanced functional materials, 22(1), 25-31. Wiley-VCH Verlag
Three dimensional photonic band gap crystals with a cubic diamond-like symmetry are fabricated. These so-called inverse-woodpile nanostructures consist of two perpendicular sets of pores in single-crystal silicon wafers and are made by means of compl
Autor:
B. Krijnen, Johannes Bernardus Charles Engelen, J.W. van Dijk, Léon A. Woldering, Leon Abelmann, R.P. Hogervorst, Dannis Michel Brouwer, Herman Soemers
Publikováno v:
Journal of micromechanics and microengineering, 21(7), 074007-074019. IOP Publishing Ltd.
This work presents a MEMS displacement sensor based on the conductive heat transfer of a resistively heated silicon structure towards an actuated stage parallel to the structure. This differential sensor can be easily incorporated into a silicon-on-i
Publikováno v:
Journal of microscopy, 233(1), 18-23. Wiley-Blackwell
We describe an experimental method to recover a single, deterministically fabricated nanostructure in various experimental instruments without the use of artificially fabricated markers, with the aim to study photonic structures. Therefore, a detaile
Autor:
Gerald A. Hebbink, Frank C. J. M. van Veggel, Lennart Grave, Léon A. Woldering, David N. Reinhoudt
Publikováno v:
Journal of physical chemistry A, 107(14), 2483-2491. American Chemical Society
Near-infrared emissive lanthanide complexes were synthesized with covalently attached sensitizers that absorb in the visible. This functionalization was designed such that the sensitizer is in close proximity to the lanthanide ion, which is a prerequ
Publikováno v:
Physical Review B
Physical review B: Condensed matter and materials physics, 90(11). American Physical Society
Physical review B: Condensed matter and materials physics, 90(11). American Physical Society
We theoretically investigate the design of cavities in a three-dimensional (3D) inverse woodpile photonic crystal. This class of cubic diamondlike crystals has a very broad photonic band gap and consists of two perpendicular arrays of pores with a re
Publikováno v:
2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
Photonic crystals control light propagation at a fundamental level [1]. Photonic crystals are ordered composite materials with a spatially varying dielectric constant that has a periodicity of the order of the wavelength of light. Frequency gaps emer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e590a557d45a1e28e42ebe4578223c5
https://research.utwente.nl/en/publications/fef64c5a-1813-46b7-9b38-92a1ff9f8b3b
https://research.utwente.nl/en/publications/fef64c5a-1813-46b7-9b38-92a1ff9f8b3b
Publikováno v:
Physical review letters, 108(8):083901. American Physical Society
We investigate the diffraction conditions and associated formation of stop gaps for waves in crystals with different Bravais lattices. We identify a prominent stop gap in high-symmetry directions that occurs at a frequency below the ubiquitous first-