Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Erwin Mecher"'
Autor:
D. Nau, Michael Salvador, A. Euteneuer, Harald Giessen, Klaus Meerholz, Erwin Mecher, A. Christ, A. Wagner
Publikováno v:
Applied Physics B. 95:31-35
Photorefractive polymers allow to reversibly record holograms over a broad spectral range. This capability offers the possibility to store the information contained in ultrafast optical pulses (i.e., time domain) in the frequency domain. We demonstra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c14346eef20271591592ff07949ee454
https://doi.org/10.1007/s00340-008-3315-9
https://doi.org/10.1007/s00340-008-3315-9
Autor:
Francisco Gallego-Gómez, Klaus Meerholz, Hartwig Tillmann, Erwin Mecher, Jan C. Hummelen, Hans-Heinrich Hörhold
Publikováno v:
Nature, 418(6901), 959-964. Nature Publishing Group
Among the various applications for reversible holographic storage media1,2, a particularly interesting one is time-gated holographic imaging (TGHI)3,4,5. This technique could provide a noninvasive medical diagnosis tool, related to optical coherence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d22d64b0b3a48eacb150238222a9e58
https://doi.org/10.1038/nature00975
https://doi.org/10.1038/nature00975
Publikováno v:
Macromolecules. 33:1972-1977
We describe the synthesis of a new class of high-Tg multifunctional photorefractive polymers. They were obtained by radical copolymerization of methyl vinyl isocyanate and various N-substituted maleimides. Hole transporting carbazole moieties were at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d1e0c2d7e795daa81738bbffc24f7be
https://doi.org/10.1021/ma990984g
https://doi.org/10.1021/ma990984g
Publikováno v:
Synthetic Metals. 102:993-996
The influence of the recording scheme on the dynamic performance of a photorefractive polymer composite is investigated. In the low-T g composite studied here, the response time is at first limited by the formation of the photorefractive space-charge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6299e1fde224757d0e3fb5b4c016ae2b
https://doi.org/10.1016/s0379-6779(98)00336-1
https://doi.org/10.1016/s0379-6779(98)00336-1
Autor:
Ruben Ramos-Garcia, Klaus Meerholz, Francisco Gallego-Gómez, Serguei Stepanov, Erwin Mecher, Svetlana Mansurova, V. Camacho-Pernas
Publikováno v:
Physical Review B. 69
Insitut fu ¨r Physikalische Chemie, Luxemburger str. 116, Koln 50939, Germany~Received 20 October 2003; published 19 May 2004!Non-steady-state photoelectromotive-force effect is proposed for experimental measurements of deviationfrom Einstein relati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12a96d2ae67a3219f5c4791b8d939e4c
https://doi.org/10.1103/physrevb.69.193203
https://doi.org/10.1103/physrevb.69.193203
Autor:
Klaus Meerholz, Erwin Mecher, Dieter Neher, Hans-Heinrich Hörhold, Lazar Kulikovsky, Oksana Ostroverkhova
All parameters describing the charge carrier dynamics in a poly(phenylene vinylene)-based photorefractive (PR) composite relevant to PR grating dynamics were determined using photoconductivity studies under various illumination conditions. In particu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cf6f9ed72acf0916daba22ed3f1cb54
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/15216
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/15216
Autor:
Francisco Gallego-Gómez, Jan C. Hummelen, Hans-Heinrich Hörhold, Hartwig Tillmann, Erwin Mecher, Klaus Meerholz
Publikováno v:
SPIE Proceedings.
Reversible holographic storage media are very useful for temporal storage of a buffer hologram, in associative retrieval, and photo-EMF detection. A particularly interesting application is optical coherence tomography (OCT), a noninvasive medical ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e223c2cb19873ad2b75d9bbee82a79f
https://doi.org/10.1117/12.513617
https://doi.org/10.1117/12.513617
Publikováno v:
Scopus-Elsevier
A simple ellipsometric technique is traditionally used for investigating the non-linear optical effects in poled polymer matrices. Upon writing a hologram in a low glass-transition-temperature photorefractive polymer composite, the chromophores are o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c58c1dc29d638d11cc3d33816ca17107
https://doi.org/10.1117/12.452418
https://doi.org/10.1117/12.452418
Autor:
Hans Joachim Eichler, Peter Kuemmel, Sven Frohmann, Erwin Mecher, Christian Mueller, Martin A. Trefzer, Enrico Dietz, Susanna Orlic, Andreas Reinicke, Ruediger Schoen
Publikováno v:
Optical Data Storage.
A novel approach to 3D optical information storage based on writing and reading of microscopic holographic gratings in a photopolymer layer is presented. Wavelength multiplexing combined with multilayer storage results in high storage densities.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ec0fc0259fae3f99f94b6d9b4ad64d5
https://doi.org/10.1364/ods.2003.tuc4
https://doi.org/10.1364/ods.2003.tuc4
Autor:
Erwin Mecher, Hans J. Coufal, Robert M. Shelby, C. Michael Jefferson, Geoffrey W. Burr, John A. Hoffnagle, Klaus Meerholz, Norbert Hampp, M. Jurich, Thorsten Juchem, Francisco Gallego, Roger M. Macfarlane
Publikováno v:
SPIE Proceedings.
We review recent progress made towards commercializable readwrite, fastaccess holographic data storage. Thisincludes a recent demonstration of high areal density holographic storage [1] , systems architectures for extendingthis high density to hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e73495e58bb5714a5a50f51c9739fb3a
https://doi.org/10.1117/12.454035
https://doi.org/10.1117/12.454035