Paper:	Interferometric Characterisation of Path Length Errors Resulting from Mirror Surface Topography with Sub-nm Reproducibility
Volume:	467, 9th LISA Symposium
Page:	297
Authors:	Kögel, H.; Gohlke, M.; Pijnenburg, J.; Gerardi, D.; Schuldt, T.; Johann, U.; Braxmaier, C.; Weise, D.
Abstract:	We present the results of our experimental characterisation of path length errors, caused by beamwalk over the surface topography of laser mirrors. These path length errors can have a major influence on the accuracy of the LISA measurement instrument in Astrium's alternative payload concept with In-Field Pointing. Our measurement setup uses a highly sensitive heterodyne interferometer for measuring the path length error amplitudes, generated by the topography of a moving, λ/10 test mirror.

Astronomical Society of the Pacific
Conference Series

© Copyright 1988 - 2024 - Astronomical Society of the Pacific
No part of the material protected by this copyright may be reproduced or used in any form other than for personal use without written permission from the ASP.

Page generated in 0.042 seconds