T-ReX Laboratory
Welcome To The T-ReX Laboratory GroupT-ReX (Time Resolved X-Ray spectroscopy) is the facility for ultrafast table-top time-resolved spectroscopies at the FERMI FEL at Elettra.
Mission of the Laboratory is to develop and offer to users advanced ultrafast photon and electron spectroscopies. Both stand-alone projects or complementary-preparatory experiments for FERMI are possible. The in-house research is devoted to the study of ultrafast or non-equililbrium processes in condensed and soft matter and their applications in technology through the use of femtosecond laser pulses. Our goal is to study transient states and photo-induced phase transitions in superconductors, magnetic materials, and electron correlations in hard- and soft- condensed matter (charge transfer and phonon assisted excitations). |
Research Highlights | Publications | Thesis Works![]() Published: Ultrafast dynamics in (TaSe4)2I triggered by valence and core-level excitation
We make use of both optical laser and free-electron laser (FEL) based time-resolved spectroscopies in order to study the effect of a selective excitation on the normal-state and on the CDW phases by probing the near-infrared/visible optical properties both along and perpendicularly to the direction of the CDW, where the system is metallic and insulating, respectively. ![]() Published: Photoinduced long-lived state in FeSe0.4Te0.6
We exploit tr-ARPES to study ultrafast electron dynamics in FeSe0.4Te0.6 following photoexcitation by near-infrared pump pulses. By exploiting probe-polarization-dependent matrix element effects, we reveal a photoinduced long-lived state, lasting for a few tens of picoseconds, showing features compatible with a nematic state. ![]() Published: Ultrafast broadband optical spectroscopy for quantifying subpicometric coherent atomic displacements in WTe2
Here we show how time-resolved broadband optical spectroscopy can be used to quantify, with femtometer resolution, the oscillation amplitudes of coherent phonons through a displacive model without free tuning parameters, except an overall scaling factor determined by comparison between experimental data and DFT calculations. ![]() Revealing cuprates high energy electronic excitations
In strongly correlated systems the electronic properties at the Fermi energy are intertwined with those at high-energy scales. One of the pivotal challenges in the field of high-temperature superconductivity is to understand how the high-energy scale physics is correlated to Mott-like excitations. By using a novel time-resolved optical spectrosocpy we faced the problem and give clear answers in this very hot topic. ![]() Effective Fermi-Dirac distribution of the Dirac particles in Bi2Se3By time- and angle-resolved photoemission spectroscopy we determined the evolution of the out-of-equilibrium electronic structure of the topological insulator Bi2Se3. ![]() Ultrafast optical control of the ZrTe5 electronic properties
Giulia Manzoni, Università degli studi di Trieste, Trieste, Italy |
News
The T-ReX Laboratory is open to users since 2017.
A novel high rep. rate HHG source has been developed in collaboration with CNR-IOM and is now operational.
The first results from the HHG source can be found here. HHG probe will be offered to users since 2020.
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2016Jan: Pharos Laser is installed and operatingJan: RegA Laser and all sources will be installed February: The dedicated optical setups will be completed March: First Test Experiments in the new Setup April: Setup for 4th Harmonic Generation is operational |
2018 Publications
A. Sterzi, G. Manzoni, A. Crepaldi, F. Cilento, M. Zacchigna, M. Leclerc, Ph. Bugnon, A. Magrez, H. Berger, L. Petaccia, and F. Parmigiani
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AwardsProf. Fulvio Parmigiani has been awarded with the Zernike Chair 2012. The Zernike Chair is a temporary honorary professorship awarded to a world-class scientist.Alberto Simoncig has been Awarded with the "Premio Emilio Zavattini 2009--2010" (Best Ph.D. Thesis) Giacomo Coslovich has been Awarded with the "Premio Emilio Zavattini 2010--2011" (Best Ph.D. Thesis) Giulio Vampa has been awarded with the "Best Graduate Poster" prize at the"Cross Border Workshop in Laser Science 2011" |
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