Initial progress with numerical modelling of scattered light in a candidate eLISA telescope

10th International LISA Symposium

Sankar, Shannon R.^1 ; Livas, Jeffrey C.^2

Universities Space Research Association, United States^1

National Aeronautics and Space Administration, Goddard Space Flight Center, United States^2

关键词: Coherent effect;    Contamination levels;    Field of views;    Full-duplex;    Interferometric imaging;    Mirror surface roughness;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/610/1/012031/pdf
DOI  :  10.1088/1742-6596/610/1/012031

来源: IOP

【 摘 要 】

We report a numerical analysis of the scattered light from within the field of view of an eLISA-like full-duplex telescope and, by comparison to a nominal allowable scattered light specification, we place constraints on the permissible mirror surface roughness and contamination levels of the mirrors. Our analysis was performed with commercially available stray light software, typically used in non-interferometric imaging telescopes and we do not include polarization or coherent effects. This work therefore represents the early steps towards a more complete understanding of the scattered light budget.