Zobrazeno 1 - 10
of 193
pro vyhledávání: '"T. Wahlbrink"'
Autor:
R. Palmer, L. Alloatti, D. Korn, W. Heni, P. C. Schindler, J. Bolten, M. Karl, M. Waldow, T. Wahlbrink, W. Freude, C. Koos, J. Leuthold
Publikováno v:
IEEE Photonics Journal, Vol 5, Iss 1, Pp 2200409-2200409 (2013)
We demonstrate compact highly efficient broadband strip-to-slot mode converters in silicon with record-low losses of 0.02 (±0.02) dB and negligible reflections between 1480 nm and 1580 nm. The new strip-to-slot transition is logarithmically tapered,
Externí odkaz:
https://doaj.org/article/547554e5af544ccfbbe028b63d916b21
Autor:
R. Palmer, L. Alloatti, D. Korn, P. C. Schindler, R. Schmogrow, W. Heni, S. Koenig, J. Bolten, T. Wahlbrink, M. Waldow, H. Yu, W. Bogaerts, P. Verheyen, G. Lepage, M. Pantouvaki, J. Van Campenhout, P. Absil, R. Dinu, W. Freude, C. Koos, J. Leuthold
Publikováno v:
IEEE Photonics Journal, Vol 5, Iss 2, Pp 6600907-6600907 (2013)
We report on high-speed multilevel signal generation and arbitrary pulse shaping with silicon-organic hybrid (SOH) Mach-Zehnder interferometer (MZI) modulators. Pure phase modulation exploiting the linear electrooptic effect allows the generation of
Externí odkaz:
https://doaj.org/article/b9ca77d7105d4b8fa271db9650718dda
Akademický článek
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Autor:
J-C, Weeber, J, Arocas, O, Heintz, L, Markey, S, Viarbitskaya, G, Colas-des-Francs, K, Hammani, A, Dereux, C, Hoessbacher, U, Koch, J, Leuthold, K, Rohracher, A L, Giesecke, C, Porschatis, T, Wahlbrink, B, Chmielak, N, Pleros, D, Tsiokos
Publikováno v:
Optics express. 25(1)
Dielectric loaded surface plasmon waveguides (DLSPPWs) comprised of polymer ridges deposited on top of CMOS compatible metal thin films are investigated at telecom wavelengths. We perform a direct comparison of the properties of copper (Cu), aluminum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c088e1deae5a4d704a980b78a4c17cdb
https://pubmed.ncbi.nlm.nih.gov/28085833
https://pubmed.ncbi.nlm.nih.gov/28085833
Autor:
M, Lauermann, S, Wolf, W, Hartmann, R, Palmer, Y, Kutuvantavida, H, Zwickel, A, Bielik, L, Altenhain, J, Lutz, R, Schmid, T, Wahlbrink, J, Bolten, A L, Giesecke, W, Freude, C, Koos
Publikováno v:
Optics express. 24(9)
We demonstrate a silicon-organic hybrid (SOH) Mach-Zehnder modulator (MZM) generating four-level amplitude shift keying (4ASK) signals at symbol rates of up to 64 GBd both at room temperature and at an elevated temperature of 80°C. The measured line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::44688ad28f92434f907cfc0e1badd27f
https://pubmed.ncbi.nlm.nih.gov/27137555
https://pubmed.ncbi.nlm.nih.gov/27137555
Publikováno v:
Physical Review B. 61:7130-7134
In a single crystal of ${\mathrm{La}}_{1.9}{\mathrm{Sr}}_{0.1}{\mathrm{CuO}}_{4}$ which has a suppressed ${T}_{c}$ of 12 K, we observed strong, temperature-dependent two-magnon Raman scattering which indicates an ordered spin phase in the ${\mathrm{C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::390b8fbbf49525dcfa52f5646a610e23
https://doi.org/10.1103/physrevb.61.7130
https://doi.org/10.1103/physrevb.61.7130
Publikováno v:
Solid State Communications. 112:315-318
The room-temperature Raman scattering from La2CuO4 is measured using a Fourier-transform spectrometer with an infrared laser. Due to the low energy of the laser, neither the two-magnon, nor the two-phonon scattering is observed, but a strong resonant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfe25e47e834a520bce74e7dbd965ed9
https://doi.org/10.1016/s0038-1098(99)00366-x
https://doi.org/10.1016/s0038-1098(99)00366-x
Autor:
Michael Nagel, J. Bolten, Heinrich Kurz, T. Wahlbrink, Christopher Matheisen, Simon Sawallich, Bartos Chmielak, Michael Waldow
Publikováno v:
Scopus-Elsevier
Summary form only given. Recently, the interest in silicon-based nanophotonic devices with electro-optic functionality has strongly increased. In Silicon a second-order electro-optic activity can be induced by breaking the inversion symmetry of the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6438a57ddcc10396a4405f364c3884a6
https://doi.org/10.1109/cleoe-iqec.2013.6801455
https://doi.org/10.1109/cleoe-iqec.2013.6801455
Publikováno v:
Ulis 2011 Ultimate Integration on Silicon.
Gadolinium-silicate (GdSiO) as high-k dielectric in sub 10nm gate first nanowire (NW) nMOSFETs is investigated. NW- and UTB- nMOSFETs with conventional SiO 2 /Poly-Si gate stacks have been fabricated and compared with GdSiO/TiN NW nMOSFETs. Specific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::464554db7f43993805b26f192a3516d7
https://doi.org/10.1109/ulis.2011.5757996
https://doi.org/10.1109/ulis.2011.5757996
Autor:
B. Tiegel, Klaus Betzler, K. Kasemir, B. Matzas, T. Wahlbrink, Manfred Wöhlecke, T. R. Volk, N. Rubinina, B. Gather
Publikováno v:
Journal of Applied Physics. 84:5191-5193
The influence of a combined doping with Zn and In on the optical properties of lithium niobate is studied. While each of these dopants is known to improve the material’s nonlinear optical properties, it is an open question whether further improveme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90890623ee77e186ffd333bf8ee29dcf
https://doi.org/10.1063/1.368769
https://doi.org/10.1063/1.368769