Multipass laser cavity for efficient transverse illumination of an elongated volume
Abstract
A multipass laser cavity is presented which can be used to illuminate an elongated volume from a transverse direction. The illuminated volume can also have a very large transverse cross section. Convenient access to the illuminated volume is granted. The multipass cavity is very robust against misalignment, and no active stabilization is needed. The scheme is suitable for example in beam experiments, where the beam path must not be blocked by a laser mirror, or if the illuminated volume must be very large. This cavity was used for the muonic-hydrogen experiment in which 6 m laser light illuminated a volume of 7 x 25 x 176 mm^3, using mirrors that are only 12 mm in height. We present our measurement of the intensity distribution inside the multipass cavity and show that this is in good agreement with our simulation.
Keywords
Cite
@article{arxiv.1506.03028,
title = {Multipass laser cavity for efficient transverse illumination of an elongated volume},
author = {Jan Vogelsang and Marc Diepold and Aldo Antognini and Andreas Dax and Johannes Götzfried and Theodor W. Hänsch and Franz Kottmann and Julian J. Krauth and Yi-Wei Liu and Tobias Nebel and Francois Nez and Karsten Schuhmann and David Taqqu and Randolf Pohl},
journal= {arXiv preprint arXiv:1506.03028},
year = {2015}
}
Comments
13 pages, 8 figures. Delayed submission. Original open access article at https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-22-11-13050