BEAMLINE AND THE REACTION MICROSCOPE END-STATION OF ELI ALPS

We are looking for an enthusiastic and skilled researcher with expertise in high-harmonic generation
(HHG)/attosecond physics/atomic, molecular and optical (AMO) physics (or closely related disciplines)
to participate in various projects carried out using the HR Gas beamline and the Reaction Microscope
end-station of ELI ALPS. In addition to contributing to developing, upgrading and operating various
pieces of equipment, the candidate is also expected to take part in user support during the use of
beamlines and end-stations in this permanent position.

DESCRIPTION OF THE HR GAS BEAMLINE AND REACTION MICROSCOPE END-STATION

The HR Gas beamline is driven by the 100 kHz high average-power HR-1, or the 10 kHz HR-A lasers of ELI
ALPS. The HR Gas beamline, which is designed for extreme ultraviolet – infrared (XUV–IR) pump–probe
studies in gas phase and has been in use since June 2019 [1], is under continuous upgrade and has been
user-ready since the beginning of 2021 [2]. The development of the beamlines to extend their
capabilities is a permanent task of the involved team [3,4].
The team is also responsible for a Reaction Microscope (ReMi or COLTRIMS). Further end-stations and
detectors are planned to be installed and will be accessible for research as well as for projects initiated
by the group [3,5].
[1] P. Ye et al., J. Phys. B: At. Mol. Opt. Phys. 53, 154004 (2020).
[2] P. Ye et al., Ultrafast Science, in press Article ID 9823783 (2022).
[3] L. Gulyás Oldal et al., Phys. Rev. Applied 16, L011001 (2021).
[4] M. Shirozhan et al. Ultrafast Science 4, 0067 (2024)
[5] T. Csizmadia et al., New J. Phys. 23, 123012 (2021).

ADDITIONAL PREFERRED QUALIFICATIONS:

Good programming skills (Python, MATLAB, C++).
Experience in 3D momentum imaging (e.g. ReMi/COLTRIMS or VMI) is an asset.
Ability to lead a (research) project alone.
Experience in projects where people from different disciplines (physics, engineering, IT) work
together.
Job location: Hungary, Szeged
Start time: Open until filled
Why join us?
International collaborations: Our team frequently engages in international scientific
collaborations with both experimental and theoretical areas, offering excellent opportunities
to expand your global network and engage in pioneering research with experts in the field.
Cutting-edge facility: ELI ALPS is part of the Extreme Light Infrastructure (ELI) project,
providing access to some of the most advanced research tools in the world. ELI ALPS provides
cutting-edge ultrashort light sources, including attosecond XUV and X-ray pulses, for the
scientific community.
Quality of life: We offer very competitive salaries in regional comparison, and the city of Szeged
provides pleasant living conditions.
ELI ERIC: Za Radnicí 835 Dolní Břežany, 252 41, Czech Republic I www.eli-laser.eu
Apply now:
For further scientific elaboration and informal discussion on this positions please contact Dr. Subhendu
Kahaly at subhendu.kahaly@eli-alps.hu and Dr. Tamás Csizmadia at tamas.csizmadia@eli-alps.hu with
your cv and letter of motivation.
If you are interested in the position, please upload your CV (including a list of publications and at least
two references) and motivation letter merged into a single PDF file to our Career Site at https://www.eli-
alps.hu/en/Career-1 .

The tasks of the Research Fellow to be hired include but are not limited to the following:
Participating in the commissioning, maintenance and operation of various pieces of equipment
for ultrafast physics studies in gas phase. These include the high-harmonic generation beamline
HR Gas incorporating time-of-flight (TOF) and XUV flat-field spectrometers and a ReMi end-
station, and further experimental apparatus to be installed.
Provision of user support on the above mentioned research tools.
Participating in the design, construction and assembly of additional group-managed equipment.
ELI ERIC: Za Radnicí 835 Dolní Břežany, 252 41, Czech Republic I www.eli-laser.eu

The candidate will have the possibility to conduct own research as well, when beam time is
available. Hence it is expected that the candidate has a vision of projects that could be
implemented using the available infrastructure.
What we expect:
The candidate should hold a PhD in physics, chemistry or other related scientific field (applications of
candidates on track to complete their PhD are also considered).
Experience in HHG, attosecond physics, AMO physics or related research fields.
Experience with ultrafast (femtosecond) lasers and ultrafast optics.
Good technical knowledge in conducting time-resolved measurements, operating vacuum
systems and characterizing ultrashort infrared or extreme ultraviolet pulses.
The successful candidate is expected to have the ability to work both independently in the lab
and as part of a team.
Good written and oral communication skills in English.