Zobrazeno 1 - 10
of 15
pro vyhledávání: '"W Th Wenckebach"'
Publikováno v:
Physics in Medicine and Biology. 47:3699-3704
We have built a relatively simple, highly efficient, terahertz (THz) emission and detection system centred around a 15 fs Ti:sapphire laser. In the system, 200 mW of laser power is focused on a 120 microm diameter spot between two silverpaint electro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa8f8fb6fadd605fd3932451317f3179
https://doi.org/10.1088/0031-9155/47/21/304
https://doi.org/10.1088/0031-9155/47/21/304
Design and performance of a THz emission and detection setup based on a semi-insulating GaAs emitter
Publikováno v:
Review of Scientific Instruments, 73(4), 1715-1719. American Institute of Physics
We have built a relatively simple, highly efficient, THz emission and detection system centered around a 15 fs Ti:sapphire laser. In the system, 200 mW of laser power is focused to a 120 µm diam spot between two silverpaint electrodes on the surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5b9eb9014a452b572941ad5ad49f9aa
https://doi.org/10.1063/1.1459095
https://doi.org/10.1063/1.1459095
Autor:
W Th Wenckebach, J. E. Dijkstra
Publikováno v:
Journal of Physics: Condensed Matter. 9:10373-10380
In this article we present a theoretical study on Hall transport of hot holes in the anisotropic valence band of Si at low temperatures (T = 20 K) in crossed E- and B-fields. A current in the direction of B is found, which may lead to a Hall field in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4143fd2d033670da13899eb04826f786
https://doi.org/10.1088/0953-8984/9/47/007
https://doi.org/10.1088/0953-8984/9/47/007
Publikováno v:
Measurement Science and Technology. 4:1410-1415
A conventional molecular gas far-infrared laser pumped by a low-pressure Q-switched CO2 laser has been cavity-dumped. The dumping of far-infrared radiation was accomplished by means of an optical semiconductor switch activated by the pulsed output of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e471fd9ef7ef8f5602c96114f51f79d1
https://doi.org/10.1088/0957-0233/4/12/016
https://doi.org/10.1088/0957-0233/4/12/016
Autor:
A. Henstra, W. Th. Wenckebach
Publikováno v:
Hyperfine Interactions. 65:751-755
A review is given of newly developed pulsed Electron Spin Resonance (ESR) methods for dynamic polarization of nuclear spins. The application of two of these methods, Nuclear Orientation Via Electron spin Locking (NOVEL) and the Integrated Solid Effec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71975daea696d80ca4f053119ebb8bb9
https://doi.org/10.1007/bf02397725
https://doi.org/10.1007/bf02397725
Autor:
W. Th. Wenckebach, Paul Kinsler
We present a new optimised model of Brookes-Herring ionized impurity scattering for use in Monte Carlo simulations of semiconductors. When implemented, it greatly decreases the execution time needed for simulations (typically by a factor of the order
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fdda0dd918a513d8ceaa58a3f624e31
http://arxiv.org/abs/cond-mat/0506641
http://arxiv.org/abs/cond-mat/0506641
Autor:
W. Th. Wenckebach, Paul Kinsler
Using Monte Carlo simulations, we demonstrate that including ionized impurity scattering in models of Si$_{(1-x)}$Ge$_x$ is vital in order to predict the correct Hall parameters. Our results show good agreement with the experimental data of Joelsson
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cf3098c5d7cb64860a63d5a65e27c04
http://arxiv.org/abs/cond-mat/0309082
http://arxiv.org/abs/cond-mat/0309082
Publikováno v:
Ultrafast Phenomena XIII ISBN: 9783642639333
There is currently a strong interest to improve the spatial resolution in THz time-domain imaging for THz microscopy of single cells. To date, work on improving the resolution was based on the use of an aperture[1] or a dynamic aperture[2], to limit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d652a228f42bee0731cc12c5435bf01
https://doi.org/10.1364/up.2002.pd3
https://doi.org/10.1364/up.2002.pd3
Autor:
P. Kinsler, W. Th. Wenckebach
Publikováno v:
Springer Proceedings in Physics ISBN: 9783642639937
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19d4ccd6ad9d14d5ae7dddc259dc2275
https://doi.org/10.1007/978-3-642-59484-7_335
https://doi.org/10.1007/978-3-642-59484-7_335
Publikováno v:
Journal of Physics C: Solid State Physics. 16:4425-4445
Experimental evidence is presented for a ferromagnetic ordering with domains of the proton spins in Ca(OH)2. This ordering was produced by dynamic nuclear polarisation (DNP) and adiabatic demagnetisation in the rotating frame (ADRF) and occurred at n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e53182c84f78680e2e561f65d7e8deb
https://doi.org/10.1088/0022-3719/16/22/017
https://doi.org/10.1088/0022-3719/16/22/017