Speaker
Manuel Zeyen
(ETH Zürich)
Description
The magnetic (Zemach) radius of the proton can be determined from the ground-state hyperfine splitting (HFS) of muonic hydrogen, an atom formed by a muon and a proton. At the Paul Scherrer Institute in Villigen, Switzerland, we aim to measure the HFS at the ppm level by means of laser spectroscopy.
Exciting this electric dipole forbidden transition, requires high laser fluence at an unusual wavelength (6.8 microns). In this talk we will present the development of a thin-disk laser system, insensitive to thermal lens effects and capable of delivering single frequency pulses at 1030 nm with hundreds of mJ. These pulses are successively converted to 6.8 micrometer via non-linear conversion stages to perform the spectroscopy experiment.
Author
Manuel Zeyen
(ETH Zürich)
