A5103139508- Strong Light-Matter Interactions
- Mechanical and Optical Resonators
- Perovskite Materials and Applications
- 2D Materials and Applications
- Superconductivity in MgB2 and Alloys
- Laser-Matter Interactions and Applications
- Ga2O3 and related materials
- Physics of Superconductivity and Magnetism
- Cold Atom Physics and Bose-Einstein Condensates
- Photoacoustic and Ultrasonic Imaging
- Random lasers and scattering media
- Spectroscopy and Laser Applications
- Quantum and electron transport phenomena
- Terahertz technology and applications
- Advanced Fiber Laser Technologies
- Spectroscopy and Quantum Chemical Studies
- Magnetic and transport properties of perovskites and related materials
- Advanced Chemical Physics Studies
- Seismic Imaging and Inversion Techniques
- Plasmonic and Surface Plasmon Research
- Advanced X-ray Imaging Techniques
- MXene and MAX Phase Materials
- Thermal Radiation and Cooling Technologies
University of Trieste
2020-2025
Elettra-Sincrotrone Trieste S.C.p.A.
2020-2025
Friedrich-Alexander-Universität Erlangen-Nürnberg
2024
We report here the realization and commissioning of an experiment dedicated to study optical properties light-matter hybrids constituted crystalline samples embedded in cavity. The experimental assembly developed offers unique opportunity weak strong coupling regimes between a tunable cavity cryogenic environment low energy degrees freedom, such as phonons, magnons, or charge fluctuations. describe setup that allows for positioning different quality factors, tuning length at temperatures,...
The competition between the electron-hole Coulomb attraction and 3D dielectric screening dictates optical properties of layered semiconductors. In low-dimensional materials, equilibrium environment can be significantly altered by ultrafast excitation photo-carriers, leading to renormalized band gap exciton binding energies. Recently, black phosphorus emerged as a 2D material with strongly layer-dependent electronic properties. Here, we resolve response bulk mid-infrared pulses tuned across...
Placing quantum materials into optical cavities provides a unique platform for controlling cooperative properties of matter, via both weak and strong light-matter coupling. Here we report the experimental evidence reversible cavity control metal-to-insulator phase transition in correlated solid-state material. We embed charge density wave material 1T-TaS$_{2}$ cryogenic tunable terahertz show that switch between conductive insulating behaviors, associated with large change sample...
In the cuprates, opening of a $d$-wave superconducting (SC) gap is accompanied by redistribution spectral weight at energies two orders magnitude larger than this gap. This indicates importance to pairing mechanism on-site electronic excitations, such as orbital transitions or charge transfer excitations. Here, we resort three-pulse pump-probe scheme study broadband nonequilibrium dielectric function in optimally doped...
The use of optical cavities on resonance with material excitations allows controlling light–matter interaction in both the regimes weak and strong coupling. We study here multimode vibrational coupling low energy phonons charge-density-wave 1T-TaS2 across its insulator-to-metal phase transition. For this purpose, we embed into THz Fabry–Pérot cryogenic tunable frequency within spectral range modes insulating track linear response coupled In temperature dielectric state, reveal signatures a...
Measuring fluctuations in matter's low energy excitations is the key to unveil nature of nonequilibrium response materials. A promising outlook this respect offered by spectroscopic methods that address matter exploiting statistical light-matter interactions with weak few-photon probes. Here we report first implementation ultrafast phase randomized tomography, combining pump-probe experiments quantum optical state measure non-equilibrium dynamics complex Our approach utilizes a time-resolved...
Unveiling and controlling the time evolution of momentum position low energy excitations such as phonons, magnons, electronic excitation is key to attain coherently driven new functionalities materials. Here we report implementation femtosecond time- frequency-resolved multimode heterodyne detection show that it allows for independent measurement atoms in coherent vibrational states α-quartz. The dependence probe field quadratures reveals their amplitude maximally changed when have maximum...
In the cuprates, opening of a d-wave superconducting (SC) gap is accompanied by redistribution spectral weight at energies two orders magnitude larger than this gap. This indicates importance to pairing mechanism on-site electronic excitations, such as orbital transitions or charge transfer excitations. Here, we resort three-pulse pump-probe scheme study broadband non-equilibrium dielectric function in optimally-doped $Bi_2Sr_2Ca_{0.92}Y_{0.08}Cu_2O_{8+{\delta}}$ and identify distinct...
The competition between the electron-hole Coulomb attraction and three-dimensional dielectric screening dictates optical properties of layered semiconductors. In low-dimensional materials, equilibrium environment can be significantly altered by ultrafast excitation photo-carriers, leading to renormalized band gap exciton binding energies. Recently, black phosphorus emerged as a 2D material with strongly layer-dependent electronic properties. Here, we resolve coherent response sub-gap...