Department Spin and Topology in Quantum Materials
FELIX
User Access
Twice a year, researchers can apply for either magnet time, FEL beam time or a combination thereof. If you are granted access, you can use the installation and all available auxiliary equipment.
The deadlines for submitting a proposal are 15 May and 15 November.
Applying for beam time is done by submitting your proposal through the FELIX proposal submission system. The proposals are evaluated by a Program Advisory Committee (PAC), which advises the HFML-FELIX management. Evaluation criteria are scientific soundness, interest and novelty and a well-reasoned need to use our unique facilities. Before submitting, please read the short guideline and download the FELIX proposal template.
Instruments of FELIX especially suited for quantum technology research
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US12 single-colour pump-probe |
FELICE two-colour time-resolved single-shot imaging
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HFML-FELIX combination |
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transmission, reflectivity, polarization |
transmission, reflection, MOKE, Faraday, birefringence, SHG
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transmission, transport measurements |
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The pump-probe setup of User Station 12 is devoted to study the dynamic properties of various materials, induced with short pulses of infrared radiation. In particular, materials with well-defined resonance behaviour in the low energy range are of interest. Typical example are the localized impurity states in semiconductors, where quantum coherence between several excited states can be observed.
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The time-resolved imaging setup of FELICE station is meant to study spatially- and temporally resolved dynamics of various materials induced by strong picosecond-long infrared pulses from cavity-dumped free-electron laser. The single-shot approach to the measurements allows also study of the processes that are not exactly repeating from shot to shot, such as for example the motion of phase boundaries during phase transitions, or modifications of domain patterns.
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The combination of high magnetic fields with the radiation of the free-electron lasers truly sets HFML-FELIX apart on a worldwide scale as the unique connection between two state-of-the-art facilities. This allows researchers to combine the highest magnetic fields with the most intense (far) infrared laser light and enter uncharted territories of science. |
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•wavelength range: 2.7-120 mm
•frequency range: 2.5-110 THz
•time resolution < 1 ps
•He flow cryostat (T>4K)
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•pump wavelength: 10-30 mm
•pump pulse energy >100 mJ
•pump pulse width: 1-3 ps
•probe wavelength: 520 nm, 1040 nm
•probe pulse width ~400 fs
•synchronization jitter <500 fs
•He flow cryostat (T> 4K)
•magnetic field < 1 T
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•wavelength range: 2.7-120 mm
•frequency range: 2.5-110 THz
•magnetic field <33 T
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