Talks and Poster Presentations (with Proceedings-Entry):
R. Saathof, G. Schitter:
"Low photon-count tip-tilt sensor";
Poster: SPIE Astronomical Telescopes + Instrumentation,
Edinburgh (UK);
06-26-2016
- 07-01-2016; in: "AS16 Proceedings",
(2016),
8 pages.
English abstract:
Due to the low photon-count of dark areas of the universe, signal strength of tip-tilt sensor is low, limiting skycoverage
of reliable tip-tilt measurements. This paper presents the low photon-count tip-tilt (LPC-TT) sensor,
which potentially achieves improved signal strength. Its optical design spatially samples and integrates the
scene. This increases the probability that several individual sources coincide on a detector segment. Laboratory
experiments show feasibility of spatial sampling and integration and the ability to measure tilt angles. By
simulation an improvement of the SNR of 10 dB compared to conventional tip-tilt sensors is shown.
Created from the Publication Database of the Vienna University of Technology.