Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Andreas Hoischen"'
Polymer-stabilized blue phases: promising mesophases for a new generation of liquid crystal displays
Publikováno v:
Polymers for Advanced Technologies. 25:1195-1207
Blue phases—special chiral liquid crystalline mesophases—are promising candidates for electro-optic devices with improved performance and simplified fabrication. A necessary precondition for possible applications is a significantly enhanced tempe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65002abd48eec61a0c9f0ceb56a24e2d
https://doi.org/10.1002/pat.3403
https://doi.org/10.1002/pat.3403
Autor:
Karoline A. Piegdon, S. Declair, Torsten Meier, Heinz-S. Kitzerow, Martin Urbanski, Cedrik Meier, Matthias Offer, Jens Förstner, Andreas D. Wieck, Andreas Hoischen, Dirk Reuter, Axel Lorke
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 42:2552-2555
GaAs-based semiconductor microdisks with high quality whispering gallery modes ( Q > 4000 ) have been fabricated. A layer of self-organized InAs quantum dots (QDs) served as a light source to feed the optical modes at room temperature. In order to ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bdbd2a9a5a2d3d8ef18a4f08ce08abb
https://doi.org/10.1016/j.physe.2009.12.051
https://doi.org/10.1016/j.physe.2009.12.051
Publikováno v:
ChemPhysChem. 2:691-694
A diffraction grating or more complex optical phase object can be formed and preserved from a crosslinked liquid crystalline film. The gratings are formed from electrically conductive liquid crystals, which show a rich variety of dissipative structur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08ec97671b9f8e63352504b3d5f0bc69
https://doi.org/10.1002/1439-7641(20011119)2:11<691::aid-cphc691>3.0.co
https://doi.org/10.1002/1439-7641(20011119)2:11<691::aid-cphc691>3.0.co
Publikováno v:
Ferroelectrics. 243:95-106
Ferroelectric liquid crystal mixtures containing photochemical crosslinkers are found to exhibit asymmetric switching properties if the crosslinking process was performed under the influence of an electric field. This behavior can be attributed to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92e71711b95cb29f34315c2d48c3485b
https://doi.org/10.1080/00150190008008011
https://doi.org/10.1080/00150190008008011
Publikováno v:
Journal of Applied Physics. 87:2105-2109
The photopolymerization of diacrylate mixtures containing a nematic twin compound and a chiral dopant leads to perfectly stable, highly crosslinked cholesteric networks. The Bragg reflection spectra of the respective monomer and polymer mixtures were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae6eb97a10c882a18a72bc2a010e4763
https://doi.org/10.1063/1.372146
https://doi.org/10.1063/1.372146
Autor:
N. Gimeno, G. Dantlgraber, Heinz-S. Kitzerow, Andreas Hoischen, M. B. Ros, Bernhard Atorf, C. Tschierske
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
et al.
Mixtures of a non-reactive and a photo-reactive liquid crystal, both consisting of bent core molecules, were used to prepare polymer-stabilized antiferroelectric liquid crystal cells by in-situ photo-polymerization. The mixtures exhibit a
Mixtures of a non-reactive and a photo-reactive liquid crystal, both consisting of bent core molecules, were used to prepare polymer-stabilized antiferroelectric liquid crystal cells by in-situ photo-polymerization. The mixtures exhibit a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05ebcc8063239d01a708ded2fcb91eb6
http://hdl.handle.net/10261/74215
http://hdl.handle.net/10261/74215
Autor:
Torsten Meier, Heinz Kitzerow, Cedrik Meier, Mark Urbanski, S. Declair, Karoline A. Piegdon, Andreas Hoischen, Jens Förstner
Publikováno v:
Advances in Optical Sciences Congress.
We experimentally and theoretically investigate microdisk resonators with embedded quantum dots immersed in a liquid crystal in its nematic phase, showing the tunabililty of the photonic modes via external parameters like temperature or electric fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50877578bd7fb8f641b2325606076415
https://doi.org/10.1364/nlo.2009.ntuc2
https://doi.org/10.1364/nlo.2009.ntuc2
Autor:
Gaby Nordendorf, Andreas Hoischen, Juergen Schmidtke, David Wilkes, Heinz Kitzerow, Alexander Lorenz, Michael Wittek
Publikováno v:
Journal of Applied Physics. 114:173104
The performance of a polymer-stabilized blue phase system based on a nematic host with large dielectric anisotropy and a chiral dopant with high helical twisting power is investigated and the influence of the reactive monomer composition on the elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f160f8903d156b783f968a639de4594d
https://doi.org/10.1063/1.4828477
https://doi.org/10.1063/1.4828477
Publikováno v:
Molecular Crystals and Liquid Crystals. 547:97/[1787]-107/[1797]
Holographic polymer-dispersed liquid crystals are promising materials for switchable holograms, optical data storage, tunable beam deflectors and various diffractive optical elements, which can be addressed by electric fields. The present paper descr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::592d74c304a3a54ceb15b303d520ec4e
https://doi.org/10.1080/15421406.2011.572798
https://doi.org/10.1080/15421406.2011.572798
Publikováno v:
Journal of Applied Physics. 105:013540
Electrically induced dissipative structures in liquid crystals can be stored by the photocuring of reactive mesogens. Thus, spontaneous pattern formation can be used to fabricate phase gratings or polymer films with a periodic surface modulation from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b1275f70bbcfc60f5a3371fd7810377
https://doi.org/10.1063/1.3055398
https://doi.org/10.1063/1.3055398