Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Norman Born"'
High accuracy terahertz time-domain system for reliable characterization of photoconducting antennas
Publikováno v:
Microwave and Optical Technology Letters. 59:468-472
We report on a terahertz (THz) time-domain system to characterize photoconductive THz emitters and detectors, that is designed for highest reproducibility. This system is excellently suited for studying the performance of THz sources and detectors in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f8d76f51b5819476173b44fecfae58e
https://doi.org/10.1002/mop.30322
https://doi.org/10.1002/mop.30322
Autor:
Georges Humbert, Annie Bessaudou, Norman Born, Bernd M. Fischer, Martin Koch, Aurelian Crunteanu
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 5:1035-1039
A terahertz amplitude switching device is proposed which allows for the efficient manipulation of sharp transmission bands. The switching concept is based on the thermally triggered insulator-to-metal transition of a thin vanadium dioxide layer, plac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f539021a0fdb1f78e1eef9c7f6fd6aed
https://doi.org/10.1109/tthz.2015.2478448
https://doi.org/10.1109/tthz.2015.2478448
Autor:
Maik Scheller, Norman Born, Christian Jansen, Jerome V. Moloney, Martin Koch, Ranjan Singh, Ibraheem Al-Naib
Publikováno v:
Advanced Optical Materials. 3:642-645
A novel conceptual design methodology for strongly interacting metamaterials allows an ultrahigh angular sensitivity. Among others, this methodology enables precise sensing of the wave vector or the exclusion of unwanted directional radiation compone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2001eae7575f9c077c26d5d6b18bb4ca
https://doi.org/10.1002/adom.201400469
https://doi.org/10.1002/adom.201400469
Publikováno v:
Electronics Letters. 51:1012-1014
The use of laser ablation of a thin metal film, which allows for rapid prototyping of various free-standing terahertz devices, is reported. The technique will provide a simple way to fabricate devices without complicated photolithography procedures.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84998a2cf57e2c214c9043f9e57361f0
https://doi.org/10.1049/el.2015.0655
https://doi.org/10.1049/el.2015.0655
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 34:316-323
We present a numerical method to determine the volumetric water content of leaves from transmission terahertz time-domain spectroscopy data. The method is based on iterative optimization of parameters of an effective medium model for vegetative tissu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56b436da563fa60a1acd79e6037f2a47
https://doi.org/10.1007/s10762-013-9972-8
https://doi.org/10.1007/s10762-013-9972-8
Autor:
Helmut Roehle, Norman Born, Bernd Sartorius, Martin Schell, S. Ullrich, Dennis Stanze, Björn Globisch, Rafal Wilk, Steffen Schumann, Roman J. B. Dietz, Martin Koch
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 34:231-237
We demonstrate pulsed THz emission and detection in low temperature (LT) MBE grown Be-doped InGaAs/InAlAs multi-nanolayer structures for an excitation wavelength of 1030 nm. We obtained spectra with a bandwidth of up to 3 THz. Furthermore, we perform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09e3be769599b8f59d8bdaf8643b2706
https://doi.org/10.1007/s10762-013-9968-4
https://doi.org/10.1007/s10762-013-9968-4
Publikováno v:
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
The feasibility of THz time-domain spectroscopy for monitoring the leaf water content of plants has been shown in earlier publications. Here, we present extensive measurement series on different plant species. Our measurements show that the behavior
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::008811233486f9508ee9a310c01f624e
https://doi.org/10.1109/irmmw-thz.2016.7758370
https://doi.org/10.1109/irmmw-thz.2016.7758370
Autor:
Amideddin Mataji-Kojouri, Martin Koch, Mahmoud Shahabadi, Hamidreza Neshasteh, Amin Soltani, Norman Born, Jan C. Balzer, Enrique Castro-Camus
Publikováno v:
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
We demonstrate a refractive index sensor for liquid samples for the THz range. The sensor presents a refractive index dependent resonance which shifts in frequency at a rate that exceeds 500 GHz/RIU. The simple structure of the sensor and the low liq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57a3b8650434345d21eb580d4279f5ba
https://doi.org/10.1109/irmmw-thz.2016.7758469
https://doi.org/10.1109/irmmw-thz.2016.7758469
Autor:
Benedikt Scherger, Norman Born, Karin Wiesauer, Martin Koch, Steffen Schumann, Christian Jansen
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 2:556-561
We present a terahertz transmission blaze-grating, which can be fabricated, easily, cost efficiently and in large numbers using compression molding of micro-powder. The diffraction properties of the grating are derived by simulation of electro-magnet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f547ae342cce7adc17cf7816e385654b
https://doi.org/10.1109/tthz.2012.2210892
https://doi.org/10.1109/tthz.2012.2210892
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 33:327-332
In this letter we present a switchable THz notch filter. The filter contains a liquid crystal layer that acts as a half wave retarder in one state and as an isotropic layer in the other state. The device combines three unique properties: it can be sw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da1533e8c1748b399cd10b90c90b7d7a
https://doi.org/10.1007/s10762-012-9877-y
https://doi.org/10.1007/s10762-012-9877-y