Sprecher
Herr
Julian Krauth
(Max-Planck-Institut für Quantenoptik)
Beschreibung
A multipass laser cavity is presented which can be used to
illuminate an elongated volume from a transverse direction. The
illuminated volume can have a several cm² large transverse cross
section. Convenient access to the illuminated volume for other experimental
components is granted at a large solid angle. The
multipass cavity is very robust against misalignment, and no active
stabilization is needed. The scheme is suitable e.g. for beam
experiments, where the beam path must not be blocked by a laser mirror,
or if the illuminated volume has to be very large. Measurements of
the intensity distribution inside the multipass cavity are found to be
in good agreement with the simulation.
On this poster, the technical developments used to operate the cavity
are presented, and an overview over possible applications is given: It was
used for the muonic-hydrogen experiment in which 6μm
laser light illuminated a volume of 7x25x176mm³, consisting of mirrors
that are only 12mm in height. Furthermore it may be suited for transverse
cooling of a beam of atoms/molecules (using two of such cavities) or
the creation of a "light curtain" illuminating a region of about 20x10cm² over
a distance of 1cm or more along the beam axis.
Autoren
Dr.
Beatrice Franke
(Max-Planck-Institute of Quantum Optics)
Herr
Julian Krauth
(Max-Planck-Institut für Quantenoptik)
