Bonn 2025 – wissenschaftliches Programm

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K: Fachverband Kurzzeit- und angewandte Laserphysik

K 1: Laser Systems – Optical Methods (joint session K/Q)

K 1.6: Vortrag

Montag, 10. März 2025, 12:30–12:45, HS XI ITW

The LISA space mission — •Lennart Wissel — Max Planck Institute for Gravitational Physics — Leibniz University Hannover

The LISA observatory is a large ESA-lead mission that will unlock the yet unaccessible millihertz regime of gravitational waves. It will be launched in the mid-2030s and consists of three spacecraft on a heliocentric orbit, each shielding free-falling test masses acting as geodesic reference points. The triangular formation utilises heterodyne interferometers to measure the variations in light travel times between the test masses across 2.5 million km distances to picometer precision.

This talk gives an overview of the mission concept, highlights its technological challenges, its current status, and finishes with an outlook for the exciting timeline ahead.

Keywords: Laser Interferometer Space Antenna; Gravitational Wave Detection; Space interferometry