Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Helmut Rathgen"'
Autor:
Helmut Rathgen, Herman L. Offerhaus
Publikováno v:
Optics express, 17(6), 4268-4283. The Optical Society
We analyze the diffraction characteristics of dielectric gratings that feature a high index grating layer, and devise, through rigorous numerical calculations, large bandwidth, highly efficient, high dispersion dielectric gratings in reflection, tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3dd926aece73528016b40f03968e5a71
https://doi.org/10.1364/oe.17.004268
https://doi.org/10.1364/oe.17.004268
Autor:
Frieder Mugele, Roald M. Tiggelaar, Helmut Rathgen, Willem Verboom, Albert van den Berg, D.C. Hermes, Richard J.M. Egberink, David N. Reinhoudt, Han J.G.E. Gardeniers, Fernando Benito-Lopez
Publikováno v:
Chemical Engineering Journal, 131(1-3), 163-170. Elsevier
The design, fabrication and high-pressure performance of several in-plane fiber-based interface geometries to microreactor chips for high-pressure chemistry are discussed, and an application is presented. The main investigated design parameters are t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fe831fb877cfbd5f642934468253bd3
https://doi.org/10.1016/j.cej.2006.12.036
https://doi.org/10.1016/j.cej.2006.12.036
Autor:
Fernando Benito-Lopez, Han Gardeniers, Albert van den Berg, D.C. Hermes, David N. Reinhoudt, Frieder Mugele, Helmut Rathgen, Willem Verboom, Roald M. Tiggelaar, Richard J.M. Egberink
Publikováno v:
Chemical Engineering Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2056f36ffbcbe0d3469e0f1f22f0435
https://doi.org/10.1016/j.cej.2007.07.035
https://doi.org/10.1016/j.cej.2007.07.035
Autor:
Jan C.T. Eijkel, Dragana Mijatovic, Niels Roelof Tas, Tamara S. Druzhinina, Helmut Rathgen, Koen M. van Delft, Frieder Mugele, and Albert van den Berg
Publikováno v:
Nano letters, 7(2), 345-350. American Chemical Society
We describe a microfabricated Fabry-Perot interferometer with nanochannels of various heights between 6 and 20 nm embedded in its cavity. By multiple beam interferometry, the device enables the study of liquid behavior in the nanochannels without usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4064f280617d0afabf7d3a4d4d282b40
https://pubmed.ncbi.nlm.nih.gov/17297999
https://pubmed.ncbi.nlm.nih.gov/17297999
Publikováno v:
Physical review letters, 99(21):214501. American Physical Society
We study the dynamics of periodic arrays of micrometer-sized liquid-gas menisci formed at superhydrophobic surfaces immersed into water. By measuring the intensity of optical diffraction peaks in real time we are able to resolve nanometer scale oscil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::beb7b0b36c943631727387f4ba94ac26
https://research.utwente.nl/en/publications/f4ff1aef-3799-4ad8-a539-1c78f18278c7
https://research.utwente.nl/en/publications/f4ff1aef-3799-4ad8-a539-1c78f18278c7
Publikováno v:
Proceedings of frontiers in optics 2007
We introduce the use of structured hydrophobic surfaces for optical switches and sensors and demonstrate an ultra sensitive ultrasound sensor based on a superhydrophobic diffraction grating. Superhydrophobic photonic crystals promise devices with tun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bffb7a8a9e7350d6008aeefc7faafa0
https://research.utwente.nl/en/publications/fcbeb33d-e318-4ee0-b3ee-a9f386f58143
https://research.utwente.nl/en/publications/fcbeb33d-e318-4ee0-b3ee-a9f386f58143
Autor:
Helmut Rathgen, Frieder Mugele
Publikováno v:
Faraday discussions, 146, 49-56. Royal Society of Chemistry
We have studied the microscopic shape, contact angle and Laplace law behavior of the liquid–gas interfaces at a superhydrophobic surface. A superhydrophobic surface is immersed in water, and the radius of liquid gas menicsi that span between adjace
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14923514ef8b974568f38f8aeb630f73
https://doi.org/10.1039/b925956b
https://doi.org/10.1039/b925956b
Autor:
Helmut Rathgen, Mikhail I. Katsnelson
Publikováno v:
Physica Scripta. :170
The limit of infinite relaxation of the Kubo formula and analytical and numerical properties of the Kramers–Kronig transformation and analytical continuation used in ab initio calculations of the optical conductivity tensor are considered. Essentia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49db9b29807360b15f03d6066170c375
https://doi.org/10.1238/physica.topical.109a00170
https://doi.org/10.1238/physica.topical.109a00170
Autor:
Koen M. van Delft, Jan C. T. Eijkel, Dragana Mijatovic, Tamara S. Druzhinina, Helmut Rathgen, Niels R. Tas, Albert van den Berg, Frieder Mugele
Publikováno v:
Nano Letters; Feb2007, Vol. 7 Issue 2, p345-350, 6p