Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Stefan Schloter"'
Autor:
M. Grasruck, Peter Strohriegl, Uwe Hofmann, Christoph Hohle, Stefan Schloter, Andreas Schreiber, Stephan J. Zilker, Andre Leopold, and D. Haarer
Publikováno v:
The Journal of Physical Chemistry B. 104:3887-3891
We report on photoelectric and holographic investigations of an organic photorefractive material based on a low molar mass glass with both photoconductive and nonlinear optical properties. By implementing a suitable plasticizer we obtained a composit
Publikováno v:
The Journal of Chemical Physics. 111:10633-10639
The holographic properties of the photorefractive polymer composite PSX:DMNPAA:TNF are determined as a function of the grating spacing by use of two-beam coupling and degenerate four-wave mixing measurements. The phase shift was quantified with the g
Autor:
Uwe Hofmann, Christoph Hohle, Stephan J. Zilker, Andreas Schreiber, M. Grasruck, Peter Strohriegl, Andre Leopold, Stefan Schloter, Dietrich Haarer
Publikováno v:
Physical Review B. 60:16543-16548
Autor:
Dietrich Haarer, Andreas Schreiber, Uwe Hofmann, M. Grasruck, Andre Leopold, Christoph Hohle, Stefan Schloter, M. A. Kol'chenko, Peter Strohriegl, J. Wolff, Stephan J. Zilker
Publikováno v:
Chemical Physics Letters. 306:285-290
Photorefractive organic systems presently show much longer response times than their inorganic counterparts. The origin of this limitation is not yet fully understood. We present a detailed investigation of the photoelectric processes involved in the
Autor:
Andre Leopold, Stephan J. Zilker, M. Grasruck, Junyou Pan, Peter Strohriegl, Dietrich Haarer, Andreas Schreiber, Stefan Schloter, Christoph Hohle, M. A. Kol'chenko
Publikováno v:
Applied Physics B: Lasers and Optics. 68:899-906
We present a detailed study of the photoelectric as well as the holographic properties of a novel organic photorefractive glass based on triphenylamine. We studied the quantum efficiency Φ of the photogeneration of charges by means of photoinduced d
Publikováno v:
The Journal of Chemical Physics. 110:4944-4951
The maximum achievable diffraction efficiency of organic photorefractive materials is strongly influenced by the properties of the nonlinear optical chromophores. Here we report on a novel evaluation method of frequency dependent ellipsometric measur
Autor:
Uwe Hofmann, Christoph Hohle, Stefan Schloter, Stephan J. Zilker, Mukundan Thelakkat, Peter Strohriegl, Dietrich Haarer
Publikováno v:
Journal of Materials Chemistry. 9:2205-2210
A novel organic photorefractive composite system is presented consisting of the amorphous multifunctional low-molar mass compound DR1-DCTA, doped with C 60 as sensitizer and diisooctyl phthalate (DOP) as plasticizer. DR1-DCTA, a carbazole substituted
Autor:
Uwe Hofmann, Hans-Werner Schmidt, Dietrich Haarer, Mukundan Thelakkat, Peter Strohriegl, Christoph Schmitz, Christoph Hohle, Stefan Schloter
Publikováno v:
Physical Chemistry Chemical Physics. 1:1693-1698
A variety of new functional materials based on triarylamines, such as low molecular weight glasses which possess hole conducting/photoconductive properties as well as amorphous bifunctional materials which combine photoconductive and non-linear optic
Publikováno v:
Synthetic Metals. 97:165-169
The density of deep traps for charge carriers significantly determines both the amplitude and the phase of the internal space-charge modulation in photorefractive polymers. We have measured the photoconductivity of a photorefractive guest—host poly
Publikováno v:
Optics Communications. 154:75-78
The standard model for photorefractivity, which was originally developed for inorganic photorefractive crystals, yields a relation between the pertinent parameters of photoconductivity and the holographic response time. We investigated a photorefract