246 citations · 451 across the 25 of their papers we have counts for
27 papers
Nanoscale origin of thermal anisotropy in monoclinic \texorpdfstring{-GaO}{beta-Ga2O3}
Kai Xu, Shuo Zhao, Luca Sung-Min Choi +19
Monoclinic -GaO is a promising ultra-wide-bandgap semiconductor for power electronics, but its low and anisotropic thermal conductivity limits heat removal, making it a…
Ultrafast excitation of Bloch plasmon polaritons in hyperbolic metamaterials with an extreme ultra-violet transient grating
Tlek Tapani, Hannes Kempf, Matteo Pancaldi +14
Manipulating materials properties with light drives advances in materials science and photonics. Hyperbolic metamaterials are promising candidates as next-generation quantum optica…
Transient laser-induced periodic surface structures revealed by time-resolved EUV diffuse scattering
D. Ksenzov, F. Capotondi, A. A. Maznev +12
The formation of permanent laser-induced periodic surface structures (LIPSS) on solid surfaces under impulsive laser irradiation above the damage threshold has been subject of exte…
Resonant Self-Diffraction of Femtosecond Extreme Ultraviolet Pulses in Cobalt
Alexei A. Maznev, Wonseok Lee, Scott K. Cushing +14
Self-diffraction is a non-collinear four-wave mixing technique well-known in optics. We explore self-diffraction in the extreme ultraviolet (EUV) range, taking advantage of intense…
Time-domain extreme ultraviolet diffuse scattering spectroscopy of nanoscale surface phonons
F. Capotondi, A. Maznev, F. Bencivenga +18
We report the observation of dynamic fringe patterns in the diffuse scattering of extreme ultraviolet light from surfaces, following femtosecond optical excitation. At each point o…
Impact of a monolayer on the nanoscale thermoelastic response of silicon heterostructures
Davide Soranzio, Denny Puntel, Manuel Tuniz +18
Understanding the thermoelastic response of a nanostructure is crucial for the choice of materials and interfaces in electronic devices with improved and tailored transport propert…
Structured illumination microscopy with extreme ultraviolet pulses
R. Mincigrucci, E. Paltanin, J. -S. Pelli-Cresi +13
The relentless pursuit of understanding matter at ever-finer scales has pushed optical microscopy to surpass the diffraction limit and produced the super-resolution microscopy whic…
A high-efficiency programmable modulator for extreme ultraviolet light with nm feature size based on an electronic phase transition
Igor Vaskivskyi, Anze Mraz, Rok Venturini +11
The absence of efficient light modulators for extreme ultraviolet (EUV) and X-ray photons significantly limits their real-life application, particularly when even slight complexity…
Transient grating spectroscopy on a DyCo thin film with femtosecond extreme ultraviolet pulses
Victor Ukleev, Ludmila Leroy, Riccardo Mincigrucci +11
Surface acoustic waves (SAWs) are excited by femtosecond extreme ultraviolet (EUV) transient gratings (TGs) in a room-temperature ferrimagnetic DyCo alloy. TGs are generated by…
Nanoscale transient polarization gratings
Laura Foglia, Björn Wehinger, Giovanni Perosa +24
We present the generation of transient polarization gratings at the nanoscale, achieved using a tailored accelerator configuration of the FERMI free electron laser. We demonstrate…
Stimulated Brillouin scattering at 1 nm-1 wavevector by extreme ultraviolet transient gratings
Danny Fainozzi, Laura Foglia, Riccardo Mincigrucci +4
We crossed two femtosecond extreme ultraviolet (EUV) pulses in a beta - Ga2O3 (001) single crystal to create transient gratings (TG) of light intensity with sub-100 nm spatial peri…
FEL stochastic spectroscopy revealing silicon bond softening dynamics
Dario De Angelis, Emiliano Principi, Filippo Bencivenga +20
Time-resolved X-ray Emission/Absorption Spectroscopy (Tr-XES/XAS) is an informative experimental tool sensitive to electronic dynamics in materials, widely exploited in diverse res…
Three-dimensional coherent diffraction snapshot imaging using extreme ultraviolet radiation from a free electron laser
Danny Fainozzi, Matteo Ippoliti, Fulvio Billè +14
The possibility to obtain a three-dimensional representation of a single object with sub-m resolution is crucial in many fields, from material science to clinical diagnostics. T…
Extreme ultraviolet transient gratings: A tool for nanoscale photoacoustics
L. Foglia, R. Mincigrucci, A. A. Maznev +23
Collective lattice dynamics determine essential aspects of condensed matter, such as elastic and thermal properties. These exhibit strong dependence on the length-scale, reflecting…
All-optical switching on the nanometer scale excited and probed with femtosecond extreme ultraviolet pulses
Kelvin Yao, Felix Steinbach, Martin Borchert +13
Ultrafast control of magnetization on the nanometer length scale, in particular all-optical switching, is key to putting ultrafast magnetism on the path towards future technologica…
Ultrafast dynamics in (TaSe)I triggered by valence and core-level excitation
Wibke Bronsch, Manuel Tuniz, Giuseppe Crupi +16
In this work, we study the out-of-equilibrium dynamics of the paradigmatic quasi-one-dimensional material (TaSe)I, that exhibits a transition into an incommensurate CDW pha…
Saturable absorption of free-electron laser radiation by graphite near the carbon K-edge
Lars Hoffmann, Sasawat Jamnuch, Craig P. Schwartz +11
The interaction of intense light with matter gives rise to competing nonlinear responses that can dynamically change material properties. Prominent examples are saturable absorptio…
Superradiant Thomson scattering from graphite in the extreme ultraviolet
C. Fasolato, E. Stellino, E. Principi +6
We study the Thomson scattering from highly oriented pyrolitic graphite excited by the extreme ultraviolet, coherent pulses of FERMI free electron laser (FEL). An apparent nonlinea…
Non-linear self-driven spectral tuning of Extreme Ultraviolet Femtosecond Pulses in monoatomic materials
Carino Ferrante, Emiliano Principi, Andrea Marini +9
Self-action nonlinearity is a key aspect -- either as a foundational element or a detrimental factor -- of several optical spectroscopies and photonic devices. Supercontinuum gener…
Hard X-ray Transient Grating Spectroscopy on Bismuth Germanate
Jeremy R. Rouxel, Danny Fainozzi, Roman Mankowsky +44
Optical-domain Transient Grating (TG) spectroscopy is a versatile background-free four-wave-mixing technique used to probe vibrational, magnetic and electronic degrees of freedom i…
Element- and enantiomer-selective visualization of ibuprofen dimer vibrations
R. Mincigrucci, Jeremy Rouxel, Barbara Rossi +19
In chemistry, biology and materials science, the ability to access interatomic interactions and their dynamical evolution has become possible with the advent of femtosecond lasers.…
Nanoscale transient magnetization gratings excited and probed by femtosecond extreme ultraviolet pulses
D. Ksenzov, A. A. Maznev, V. Unni +15
We utilize coherent femtosecond extreme ultraviolet (EUV) pulses derived from a free electron laser (FEL) to generate transient periodic magnetization patterns with periods as shor…
Ångström-resolved Interfacial Structure in Organic-Inorganic Junctions
Craig P. Schwartz, Sumana L. Raj, Sasawat Jamnuch +18
Charge transport processes at interfaces which are governed by complex interfacial electronic structure play a crucial role in catalytic reactions, energy storage, photovoltaics, a…
Photoexcited organic molecules to highly efficient autoionization
Sesha Vempati, Lea Bogner, Clemens Richter +4
The conversion of optical and electrical energy in novel materials is key to modern optoelectronic and light-harvesting applications. Here, we investigate the equilibration dynamic…