Please use this identifier to cite or link to this item:
|Title:||Analysis of the topography of a Bragg grating in chalcogenide glass|
|Author(s):||Messaddeq, Sandra H.|
Siu Li, M.
Aegerter, Michel A.
|Year of Publication:||2001|
|OPUS Source:||Applied surface science. - 181. 2001, S. 19-27|
|SWD key words:||Topographie|
|DDC notations:||620 Engineering and machine engineering|
|Publikation type:||Journal Article|
|Abstract:||Relief Bragg gratings were recorded on the surface of Ga-Ge-S glass samples by interference of two UV laser beams at 351nm. Scanning force microscopy was used to perform a 3D image analysis of the resulting surface topography, which shows the superposition of an imprinted grating over the base topography of the glass. An important question regarding the efficiency of the grating is to determine to what extent the base topography reduces the intended coherent scattering of the grating because of its stochastic character. To answer this question we separated both base and gratings structures by Fourier filtering, examined both spatial frequency and roughness, and determined the correlation.|
|Link to this record:||urn:nbn:de:bsz:291-scidok-25155|
|Date of registration:||15-Dec-2009|
|Faculty:||SE - Sonstige Einrichtungen|
|Department:||SE - INM Leibniz-Institut für Neue Materialien|
SciDok - Der Wissenschaftsserver der Universität des Saarlandes
Items in SciDok are protected by copyright, with all rights reserved, unless otherwise indicated.