Polarization Dependence of the Formation of Surface Relief Gratings in Azobenzene-Containing Molecular Glasses

Title data

Audorff, Hubert ; Walker, Roland ; Kador, Lothar ; Schmidt, Hans-Werner:
Polarization Dependence of the Formation of Surface Relief Gratings in Azobenzene-Containing Molecular Glasses.
In: The Journal of Physical Chemistry B. Vol. 113 (2009) Issue 11 . - pp. 3379-3384.
ISSN 1520-5207
DOI: https://doi.org/10.1021/jp809151x

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Abstract in another language

This paper presents a comprehensive study of the formation of surface relief gratings in a series of photoresponsive molecular glasses. Holographic experiments were performed on films of the azobenzene-containing molecular glasses. Seven relevant polarization configurations of the writing beams were systematically applied, and simultaneously the diffraction efficiency was monitored during the process of inscription. The temporal evolution of the diffraction efficiency can be precisely simulated with a model which takes both the surface relief and the phase grating in the volume into account. From the measured diffraction efficiencies, the modulation heights can be directly calculated and they were independently confirmed by atomic force microscopy. We found that all experimental results can be explained with the gradient force model, and we suggest that the grating heights generated with different writing polarizations can be ascribed to the varying strengths of the gradient force. For materials with diff...

Further data

Item Type:	Article in a journal
Refereed:	Yes
Institutions of the University:	Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I Research Institutions Research Institutions > Research Centres Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF
Result of work at the UBT:	Yes
DDC Subjects:	500 Science 500 Science > 500 Natural sciences 500 Science > 530 Physics 500 Science > 540 Chemistry
Date Deposited:	27 Mar 2015 10:15
Last Modified:	18 Feb 2016 08:25
URI:	https://eref.uni-bayreuth.de/id/eprint/8658