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18/11/2026, 09:30
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18/11/2026, 11:00Plenary talk
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Markus Guehr (Deutsches Elektronen-Synchrotron (DESY))18/11/2026, 11:30Plenary talk
Many molecular light-energy conversion processes in nature occur on an ultrafast (sub-picosecond) timescale, such as retinal light harvesting, optical switching of green and yellow fluorescent proteins, and nucleobase photoprotection. The conversion process often occurs at conical intersections, which are regions in molecular phase space characterized by degenerate potential energy surfaces...
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Marcos Dantus (Michigan State University)18/11/2026, 12:15Invited
Disruptive probing reveals reaction pathways that are hidden in conventional mass spectra by following how a delayed laser pulse redirects evolving molecular ions and clusters into specific fragment channels [1]. Here we combine femtosecond strong-field ionization, time-resolved mass spectrometry, and ab initio molecular dynamics simulations to investigate H3+ formation in methylamine,...
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Ignacio M. Casasús (Universidad Complutense de Madrid)18/11/2026, 12:40Oral
Evidence of resonant Coulomb explosion imaging induced by low-intensity femtosecond UV-pump UV-probe pulses is presented and applied to the investigation of the methyl iodide molecular dimer, (CH$_3$)$_2$. Since the UV-pump leads to excitation and dissociation of both monomers, and the UV-probe is configured to resonantly enhance ionization of a specic fragment, iodine or methyl, Coulomb...
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Estefania Sucre-Rosales (University of Geneva)18/11/2026, 12:55Oral
Three examples of charge transfer processes in rylene diimide molecules and macromolecules will be discussed using ultrafast transient absorption spectroscopy (TAS) results. First, the photoinduced charge transfer dynamics in luminescent donor-acceptor polymers and copolymers1 that use a single naphthalene diimide (NDI) as acceptor, polystyrene chains as primary donor, and secondary...
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PABLO SAN MIGUEL CLAVERIA (Universidad Politécnica de Madrid)18/11/2026, 13:10Oral
The generation of strong, transient magnetic fields is a defining characteristic of relativistic laser-solid interactions, playing a pivotal role in phenomena ranging from Target Normal Sheath Acceleration (TNSA) to micro-turbulent plasma instabilities. When high-intensity laser pulses irradiate overdense plasma targets, they drive complex, high-current electron dynamics that rapidly manifest...
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Prof. F. Javier García de Abajo (ICFO-Institut de Ciencies Fotoniques)18/11/2026, 15:00Keynote
Ultrafast electron microscopy has emerged as a research frontier, enabling the investigation of material excitations with an unparalleled combination of spatial and temporal resolution. Beyond their role as classical probes, free electrons have unique quantum properties that make them attractive resources for quantum nanophotonics and open fundamentally new avenues for quantum technologies. In...
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Eduardo Oliva Gonzalo (Universidad Politécnica de Madrid)18/11/2026, 16:00Oral
This work presents recent results on the interaction of structured light with plasmas. Experimental and modelling results unveil its potential applications in plasma diagnosis, especially in the fields of Inertial Confinement Fusion (ICF), plasma based soft X-ray lasers and Laboratory Astrophysics. The full propagation + interaction with plasma process can be modelled using our multiscale,...
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Eva Otero Picon (Universitat Politècnica de Catalunya)18/11/2026, 16:15Oral
In this work we design and study a dielectric multilayer with a geometry implementing the topological Su-Schrieffer-Heeger (SSH) model1,2 supporting a strong electromagnetic field localization at the surface, which enhances linear and nonlinear optical interactions. We study second harmonic generation (SHG) from the multilayer and use it as an indirect measurement of the localized surface...
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Sebastián Mesa Apestegui (IMDEA Nanoscience)18/11/2026, 16:30Poster
NiPS₃, a member of the metal phosphotrichalcogenide family, consists of crystalline layers strongly bonded within planes that are held together by weaker van der Waals forces. Quantum confinement effects promote the formation of tightly bound excitons, endowing NiPS₃ with properties of interest for applications in electrocatalysis and optoelectronic devices – such as transistors,...
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Shahriar Mohammadi (Zernike Institute for Advanced Materials, University of Groningen)18/11/2026, 16:30Poster
Understanding and controlling ultrafast vibronic dynamics of conjugated donor polymers is crucial for further advancing exciton transport and charge separation in organic solar cells (OSCs). In this contribution, we demonstrate the first application of the chirp-dependent time-resolved (CDTR) photoluminescence double-pump technique to relevant donor materials: PM6, PBDB-T, and PBDB-T thin...
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Kushal Shaw (Universidad Complutense Madrid)18/11/2026, 16:30Poster
Understanding how photoexcited aromatic molecules redistribute energy is central to determining whether excitation leads to photostable relaxation or bond-selective chemistry. Anisole is a model methoxy-substituted aromatic in which bound ππ^states coexist with dissociative πσ^states along the O-CH3 coordinate. Its structured near-ultraviolet absorption band supports bound vibronic levels,¹...
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Mr Gonzalo Gomez-Munoz (Instituto de Optica-CSIC, Madrid, ES)18/11/2026, 16:30Poster
ZnO is a multifunctional transparent conductive oxide (TCO) with many scientific and technologic uses. They include, among others, applications in biomedicine, photonics, sensing or photocatalysis. These applications could benefit in many cases from the use of large-area, electrically anisotropic surfaces (i.e. optically transparent surfaces with alternating highly conductive and highly...
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Judith Reyes Martín (Instituto Galego de Física de Altas Enerxías)18/11/2026, 16:30Poster
Currently, conventional particle accelerators, such as cyclotrons or linear accelerators, can accelerate charged particles to extremely high energies, and are therefore fundamental in applications including hadron therapy, and radioisotope production for medical diagnostics. However, the acceleration gradients in these systems are typically limited to values on the order of tens of MV/m,...
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Alejandro Serrano Capote (IMDEA Nanociencia)18/11/2026, 16:30Poster
At the heart of any light-harvesting technology, such as artificial photosynthesis or photovoltaics, lie the fundamental steps of photoinduced charge transfer and separation, which are best optimized by combining electron donor and acceptor materials into molecular dyads. In these architectures, the donor and acceptor units are integrated into a single molecule and linked by a π-conjugated...
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Mr Alberto Sanz Verdejo (Universidad Complutense de Madrid (UCM))18/11/2026, 16:30Poster
Femtosecond velocity map imaging is employed here to investigate the time-resolved formation of CH2 and Cl (2P3/2,1/2) following from the photodissociation of the CH2Cl radical at 298 nm, in combination with a 800 nm probe to monitor its temporal evolution. The CH2Cl species was generated through photolysis of the a precursor precursor, chloroiodomethane (CH2ICl), by excitation at 268 nm. The...
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Alka Philip (Instituto de Óptica 'Daza de Valdés' (IO), CSIC)18/11/2026, 16:30Poster
Localized surface plasmon resonance (LSPR) in novel metal embedded nanocomposites have attracted considerable interest due to their tunable optical properties with applications in photonics and sensing [1]. The light induced coupling between photons and oscillating conduction electrons (SPR) governs the optical response in nanoparticles (NPs) embedded in dielectrics. Furthermore, light-matter...
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Yago Radziunas Salinas (Photonics4Life, Universidade de Santiago de Compostela)18/11/2026, 16:30Poster
Among the different techniques to modify materials at the surface level, laser micromachining offers a versatile working route to alter the topography of a target in the micrometric scale. Femtosecond pulsed laser ablation (fs PLA) leads to minimal debris outcomes in comparison to longer pulse technologies, such as pico or nanosecond PLA. The briefness of the interaction conferred by fs PLA...
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Belén Valiente Pascual (Instituto de Óptica, CSIC)18/11/2026, 16:30Poster
Silicon’s exceptional optical and electrical properties, combined with its high purity, crystal quality, abundance and low price makes it the main standard for developing new micro- and nanoscale technologies in electronics and photonics [1]. In this work, we present a novel application: the formation of vibrating microcavities by irradiating a Si (111)-oriented wafer covered with a...
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Rodrigo González Fuentes (Dpto de Química, Universidad Autónoma de Madrid)18/11/2026, 16:30Poster
With the advent of coherent light sources featuring attosecond resolution and sub-femtosecond UV/VIS pulses generated via high-order harmonic generation, observing pure, laser-induced electronic coherences before nuclear response has become possible.\textsuperscript{1,2} Accurately tracking these nonlinear dynamics and non-adiabatic transitions requires computational methods capable of...
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Gonçalo Vaz (GoLP-IPFN)18/11/2026, 16:30Poster
Ultrafast mid-infrared lasers provide access to molecular vibrational and rotational modes that play a crucial role in science. New-generation high-energy ultrafast sources have enabled significant advances in fields such as harmonic generation and attosecond pulse generation. Optical Parametric Chirped Pulse Amplification (OPCPA) is one of the most well-established methods of producing...
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ILIANA HERNANDEZ CRUZ (CENTRO DE INVESTIGACIONES EN ÓPTICA)18/11/2026, 16:30Poster
In this work, a nanosecond pulsed laser was used to photoacoustically generate ultrasonic waves in an unsaturated polyester resin plate. The generated waves propagated through periodic arrays of stainless-steel cylinders immersed in water. The objective was to investigate how the center-to-center spacing between cylinders modifies the propagation of ultrasonic waves.
Three periodic...
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Judah Amir Rentería Lampaya (Galician Institute of High Energy Physics (IGFAE))18/11/2026, 16:30Poster
Laser-based accelerators offer a compact and cost-effective alternative to conventional accelerators for X-ray production, enabling applications in medicine and industry. However, their ultrashort radiation pulses can lead to pile-up effects in conventional spectrometers, motivating the use of passive detectors such as Image Plates (IPs) which integrate the X-ray energy over the exposure time....
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Nitika * (Institute of Nano Science and Technology, Mohali)18/11/2026, 16:30Poster
Non-stoichiometric plasmonic semiconductors such as Cu2-xS have emerged as promising materials for energy conversion applications owing to their tunable band gaps, cost-effectiveness, and ability to harvest near infrared (NIR) energy. Integrating these plasmonic semiconductors with lead halide perovskites in heterostructures enables strong plasmon-exciton coupling, resulting in enhanced light...
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Mr Adhil Kabeer K (PhD student, IMDEA Nanoscience)18/11/2026, 16:30Poster
Protein–Chromophore Biohybrids for Tunable Delayed Emission
Adhil Kabeera, Juan Cabanillasa, and Sara Hernándeza,*
a IMDEA Nanoscience, Madrid, Spain
Presenting Author: adhil.kabeer@imdea.org
Proteins possess three-dimensional structures that confer upon them a cardinal role in a plethora of natural processes,...
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Ignacio M. Casasús (Universidad Complutense de Madrid)18/11/2026, 16:30Poster
Molecules exposed to intense femtosecond laser fields display a complex interplay of multiphoton ionization, resonances, and tunneling dynamics. Although above-threshold ionization (ATI) has been extensively characterized in atoms, its resonance-enhanced counterpart in polyatomic molecules has remained elusive. Here we investigate the strong-field ionization of ammonia (NH$_3$) by 800 nm...
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AKANSHA VERMA (INDIAN INSTITUTE OF TECHNOLOGY MANDI)18/11/2026, 16:30Poster
Quasi-2D perovskites (L₂Aₙ₋₁PbₙI₃ₙ₊₁) are naturally forming quantum wells with highly tunable optoelectronic properties¹. While extensive research has explored the roles of spacer cation chemistry and halide substitution in governing carrier dynamics, the influence of A-site cation variation remains comparatively understudied¹⁻³. Here, we employ a fixed 4-fluorobenzylammonium (4-FBA) spacer...
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Aitana Hurtado Mendoza (Instituto de Química Física Blas Cabrera, CSIC)18/11/2026, 16:30Poster
Understanding how molecular organization in solution governs excitonic coupling and structure in conjugated polymer nanostructures remains a central challenge in soft condensed matter physics. Here, we show that controlled solution-state pre-assembly of poly(3-hexylthiophene) (P3HT) prior to nanoparticle (NP) formation enables tuning of intrachain and interchain interactions, with direct...
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Shreya Bagchi (IMDEA Nanociencia)18/11/2026, 16:30Poster
Controlling phase transitions in correlated quantum materials [1] with ultrafast light pulses offers a powerful route to creating and probing non-equilibrium states of matter. However, identifying the microscopic mechanisms that drive these transformations remains a major challenge. Vanadium dioxide (VO2) provides a particularly compelling example. It undergoes a first-order insulator-to-metal...
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Sandra Gómez (Universidad Autonoma de Madrid)18/11/2026, 17:30Invited
Femtochemistry explores the ultrafast structural and electronic changes that occur in molecules following light absorption. The relaxation of photoexcited molecules often involves nonadiabatic effects, where coupled electronic and nuclear motion drives processes such as photodissociation, isomerization, ring-opening reactions, and internal conversion. Understanding these mechanisms is crucial...
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Carlos Doñate Buendia (University Jaume I, GROC-UJI)18/11/2026, 17:55Oral
Femtosecond laser ablation in liquids enables advanced control over nanoparticle (NP) structure, but efficient energy delivery remains a key challenge that can be addressed through beam-shaping strategies [1]. While conventional PLAL setups rely on spherical focusing optics, advanced spatial beam engineering offers new degrees of freedom to control energy distribution and ablation dynamics...
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Robertas Grigutis18/11/2026, 18:10Oral
Optical parametric chirped-pulse amplification (OPCPA) enables simultaneous generation of few-cycle pulses, high peak power, and high average power required for advanced strong-field and ultrafast mid-infrared applications [1]. We present a fully integrated OPCPA platform developed entirely using Light Conversion technologies, combining an ORPHEUS-OPCPA frontend with four synchronized 5 mJ...
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Francois COURVOISIER (Marie and Louis Pasteur University, CNRS, FEMTO-ST institute, F-25000 Besancon, France)19/11/2026, 09:00Plenary talk
The generation of very dense plasmas with ultrafast lasers is key to applications such as tabletop warm dense matter generation—the state of matter found in planetary cores or inertial confinement fusion paths—and laser-induced synthesis of new material phases. For these applications, generating dense plasma inside materials is highly desirable to benefit from large volumes and confined...
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Prof. Majed Chergui (Elettra Sincrotrone)19/11/2026, 09:45Invited
Ultrafast X-ray spectroscopies (absorption, emission and resonant inelastic X-ray scattering or RIXS) are powerful tools to monitor the photoinduced electronic, spin and structural changes in matter, with element-selectivity. They were developed over the past 25 years and are now firmly established to probe dynamics in (bio)molecular systems and in Materials, either using Synchrotron radiation...
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Dr Ana I. Gómez-Varela (Universidade de Santiago de Compostela)19/11/2026, 10:10Invited
Ultrafast laser fabrication offers a flexible way to produce three-dimensional microstructures with well-defined geometries and functionalities. Our work focuses on hybrid organic-inorganic photoresists as materials for biomedical microdevices, particularly for localized drug delivery1.
Dexamethasone is incorporated into the photoresist as a model drug, allowing its inclusion directly...
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Íñigo Sola (Universidad de Salamanca)19/11/2026, 10:35Invited
Versatile metrology of ultrashort pulses using amplitude swing technique
Íñigo Sola, a,b Cristian Barbero, a,b Miguel López-Ripa, a,b and Benjamín Alonso a,b
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a Grupo de Investigación en Aplicaciones del Láser y Fotónica (ALF), Universidad de Salamanca, 37008 Salamanca, Spain.
b Unidad de Excelencia en Luz y Materia Estructuradas (LUMES), Universidad de Salamanca, 37008 Salamanca,... -
Clara Saraceno (Ruhr University Bochum)19/11/2026, 11:35Keynote
Ultrafast laser-driven broadband Terahertz light sources are nowadays ubiquitous tools in many scientific fields, enabling researchers to control and probe an immense variety of low energy phenomena in condensed matter and other systems. They are also being increasingly deployed in industrial settings for inspection and non destructive testing: THz waves "see through" optically opaque objects,...
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Fernando Ardana Lamas (ICFO – The Institute of Photonic Sciences)19/11/2026, 12:10Invited
Abstract
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Attosecond transient absorption spectroscopy (ATAS) serves as a paramount technique for tracking real-time electronic motion and coherence in matter with unprecedented temporal resolution. Extending this technique towards higher photon energies adds an element sensitive probe as it allows to access core electrons. Apply to many body physics it allows to resolve both electron and... -
Belén Sotillo Buzarra (Department of Material Physics, Faculty of Physics, Complutense University of Madrid)19/11/2026, 12:35Invited
Niobium and niobium-based oxides are attracting increasing interest because of their chemical and thermal stability, superconducting properties, and potential applications in catalysis, photocatalysis [1,2], and energy storage [3]. Niobium oxides and mixed titanium-niobium oxides exhibit rich structural chemistry, defect-driven electronic behaviour, and tunable optical and electrochemical...
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DANIEL PUERTO GARCIA (Universidad de Alicante)19/11/2026, 13:00Invited
This work investigates the influence of laser repetition rate, pulse number, and fluence on surface-structure formation in PVA/AA and Biophotopol photopolymers under femtosecond laser irradiation [1]. By analyzing the dependence of structure height on the irradiation parameters, different growth efficiencies associated with monomer diffusion are identified, providing further insight into...
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Dr Asier Longarte (Euskal Herriko Unibertsitatea (EHU))19/11/2026, 13:25Oral
Pyrrole is a common aromatic motif present in many biological chromophores that can be electronically photoexcited by solar radiation. In isolated conditions, its relaxation dynamics takes place in tens of femtoseconds (fs), involving the coupling of πσ reactive states to the bright ππ states that mediate the photoexcitation.1 This behavior is thought to have important consequences in the...
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Luis Arnaut (University of Coimbra)19/11/2026, 15:00Keynote
Electron transfer reactions are arguably the simplest chemical reactions but they have not yet ceased to intrigue researchers. Charge-separation and charge-recombination reactions are at the core of life-sustaining processes, molecular electronics and solar cells. Intramolecular electron donor-acceptor systems capture the essential features of these reactions and enable their fundamental...
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Marta Fajardo (Instituto Superior Técnico, Instituto de Plasmas e Fusão Nuclear)19/11/2026, 15:35Invited
The increasing ability to control the spatial, temporal and polarization structure of ultrashort laser pulses opens new possibilities for tailoring light–matter interactions beyond the conventional Gaussian pulse. Orbital angular momentum, vector beams and spatio-temporal couplings can be used not simply to modify the focal intensity distribution, but to control the topology, velocity and...
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Marcos de Lucas Medina (IMDEA-Nanociencia)19/11/2026, 16:00Oral
Transition metal complexes play a central role in modern photophysics and photochemistry due to their ability to harvest light and mediate charge transfer processes [1,2] . However, many of the most efficient photoactive systems are based on scarce and expensive noble metals such as Ru, Ir, or Pt, which limits their large-scale application in photocatalysis, light-emitting devices, and solar...
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Niek van Hulst (ICFO - Institute of Photonic Sciences)19/11/2026, 16:15Oral
Ultrafast pump-probe spectroscopy generally involves fluences above J/cm2. Inside a microscope with diffraction limited spots fluences can be even higher. In contrast, natural light harvesting systems operate at sun-light conditions: ~100 mw/cm2, corresponding to around 1 nJ/cm2 for typical pulsed laser, rendering conventional transient pump-probe experiments unfeasible. Here we present a...
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Olivier ZABIOLLE (Amplitude)19/11/2026, 17:50Oral
Key words: High Average Power, High Peak Power, High Energy, Ultrashort Pulse, OPA/OPCPA, Ti:Sapphire, Ytterbium
Amplitude provides the broadest portfolio of ultrafast lasers based on diverse existing technologies: Ytterbium, Ti:Sapphire, Neodymium, OPCPA based systems... We report here the latest achievements in the development of high energy ultrafast femtosecond lasers along with our...
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Kushal Shaw (Universidad Complutense Madrid)19/11/2026, 18:05Oral
Photoexcitation of donor–acceptor chromophores initiates coupled electronic, structural, vibrational, and solvent dynamics. Here, we investigate the solvent-dependent photophysics of para-nitroaniline (PNA), a prototypical push–pull chromophore, using femtosecond broadband transient absorption spectroscopy following excitation at 400 nm.¹˒² Measurements were performed in water, methanol,...
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Dr KM AKANKSHA DUBEY (Technion- Israel Institute of Technology Israel)19/11/2026, 18:20Poster
Quantum coherence naturally arises from the many-body quantum nature of molecules. Upon strong-field ionization, a molecule can undergo a periodic oscillation of its charge density owing to coherent superposition of ionic states known as charge migration (CM) [1]. Since CM primarily arises from fundamental quantum effects such as electron correlations, it offers novel routes for probing...
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Juan Carlos Otero Fdez. de Molina (Departamento de Química Física, Facultad de Ciencias, 29071, Málaga; España)19/11/2026, 18:20Poster
The electrochemical surface-enhanced Raman spectra (SERS) of 1,4-bis(4-vinylpyridyl)benzene (bvpb) recorded on silver electrodes at different potentials, using three excitation wavelengths (785, 532, and 473 nm), reveal the presence of a resonance process at negative potentials under 785 nm excitation. This process leads to the appearance of two strongly enhanced SERS bands at ca. 1500 and...
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Suman Bhowmik (IIT Kanpur)19/11/2026, 18:20Poster
Intersystem crossing (ISC) is a photophysical process which is essential for triplet-state formation, with profound implications for photocatalysis, photodynamic therapy, and optoelectronic devices. Our research combines ultrafast and steady state spectroscopy, and quantum chemical calculations to unravel how molecular structure, vibrational dynamics, and environmental factors govern ISC...
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Prof. ROSA MARIA WEIGAND TALAVERA (UNIVERSIDAD COMPLUTENSE DE MADRID)19/11/2026, 18:20Poster
The polarization state of few-cycle laser pulses plays a fundamental role in light–matter interactions, governing phenomena such as optomagnetic effects, high-harmonic generation, and coherent control. Accurate characterization of the time-dependent polarization of ultrashort pulses is therefore essential for both optimizing these applications and gaining insight into the underlying physical...
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Jesus Gonzalez Vazquez (Universidad Autónoma de Madrid)19/11/2026, 18:20Poster
Photodissociation of methyl iodine in its A band is a classical example of a fast reaction mediated with by a conical intersection. The arrival time to this conical intersection was first estimated using theoretical simulations using semiclassical [1, 2, 3] and quantum [4, 5, 6, 7, 8, 9, 10] dynamics over pre-existent potential energy surfaces [1, 2, 5]. From the experimental point of view,...
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Faisal Alresheedi (Department of Physics, College of Science, Qassim University, Saudi Arabia)19/11/2026, 18:20Poster
Titanium nitride (TiN) thin films are widely used as protective coatings and functional materials because of their high hardness, excellent wear resistance, chemical stability, and compatibility with silicon-based electronic devices. In this study, TiN thin films were deposited on Si (100) substrates by reactive pulsed laser deposition using a titanium target in a nitrogen atmosphere at a...
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Prof. Daniel Puerto (Universidad de Alicante)19/11/2026, 18:20Poster
Ultrafast laser processing enables highly localized material modification, although the final morphology and the extent of the collateral thermal effects strongly depend on the temporal distribution of the delivered energy. In polymers, their low thermal diffusivity and relatively low phase transition temperatures promote heat accumulation even at repetition rates in the kHz regime. Although...
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Jyoti Arya (Universitat Politecnica de Catalunya)19/11/2026, 18:20Poster
We present an experimental and theoretical study of second harmonic generation (SHG) in an ITO/gold bilayer with emphasis on the role of interfacial effective mass and charge discontinuities. First, we measure the SHG response of individual components- ITO and gold nanolayers- separately, and as expected, the SH signal is triggered by Coulomb, magnetic Lorentz and convective sources. In ITO...
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Benas Stanionis (Center for Physical Sciences and Technology)19/11/2026, 18:20Poster
Two-dimensional (2D) materials exhibit unique properties due to quantum confinement and large surface-to-volume ratios. Thin bismuth (Bi) layers are promising for topological insulators, thermoelectric devices, sensors, and ultrafast optoelectronics. While bulk Bi is a semimetal, ultrathin films become semiconducting. Femtosecond excitation of Bi films can generate terahertz (THz) radiation...
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Mr Rajdwip Bhar (University of Duisburg-Essen)19/11/2026, 18:20Poster
In condensed matter systems, many dynamical processes driven by strong correlations and non-equilibrium effects occur on ultrashort timescales, ranging from femtoseconds to nanoseconds. The objective of this work is to establish a table-top setup capable of extracting detailed information about these processes in complex materials at ultrafast timescales. X-ray absorption spectroscopy (XAS)...
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Sonia MarggiPoullain (Universidad Complutense de Madrid)19/11/2026, 18:20Poster
The photodissociation of alkyl iodides has long served as a benchmark for understanding nonadiabatic molecular dynamics following ultraviolet excitation1. Allyl iodide provides an interesting extension to this family owing to the resonance stabilization of the allyl radical, which is expected to modify the excited-state potential energy landscape and influence the dissociation mechanism....
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Rishabh Kumar Pandey (The Chinese University of Hong Kong Shenzhen)19/11/2026, 18:20Poster
The present article exhibits a theoretical exploration of vibronic coupling effects in the 193 nm experimental photoelectron spectra of the LiB$_6^-$, focusing on its six lowest-lying electronic states. Based on adiabatic potential energy curves derived from ab initio calculations, we construct a diabatic vibronic Hamiltonian and perform nuclear dynamics by adopting TD and TI formulations of...
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Prof. Juan Cabanillas Gonzalez (IMDEA Nanociencia)19/11/2026, 18:20Poster
Metalloporphyrins based on open-shell transition metals, such as Ni(II), exhibit typically fast excited-state relaxation. In this work, we shed light into the non radiative relaxation mechanism in a panchromatic nanographene-Ni(II) porphyrin conjugate. Variable temperature transient absorption spectroscopy (VTTAS) and global fit analysis are combined to produce a picture of the relaxation...
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Alessia Pasquazi (Loughborough University)20/11/2026, 09:00Plenary talk
Optical frequency combs in microresonators, often termed 'microcombs', are optical sources made up of a series of equally spaced frequency lines. These lines are typically produced in nonlinear microcavities through the Kerr nonlinearity. The discovery of dissipative temporal cavity solitons marked a significant breakthrough in the field, enabling the generation of broad and smooth spectra...
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Cruz Mendez (Centro de Láseres Pulsados)20/11/2026, 09:45Invited
The Spanish Center for Pulsed Lasers (CLPU) [1] is one of the Spanish Singular Scientific and Technical Infrastructures (ICTS), hosting the VEGA laser facility as its user-oriented experimental target area.
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VEGA system is a Ti:Sapphire Chirped Pulse Amplification (CPA)-based laser chain comprising three beamlines called VEGA-1,2 and 3 delivering up to 20 TW, 200 TW and 1 PW peak power... -
Laura Rego Cabezas (Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC))20/11/2026, 10:10Invited
Laser light can be tailored in a broad variety of ways. From standard temporal and spectral shaping, which led to the generation of ultrashort laser pulses, to harnessing light’s polarization or creating beams with properties associated to their spatial structure. Interestingly, the capability of shaping light’s symmetries and structure can be used to investigate matter’s symmetries and...
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Óscar Pérez Benito (IMDEA Nanociencia)20/11/2026, 10:35Oral
We present progress towards the realization of a coherent extreme ultraviolet (XUV) beamline at IMDEA Nanociencia that images nanoscale phase textures in quantum materials with femtosecond temporal resolution. This is achieved by combining high-harmonic generation (HHG)¹ with coherent imaging methods². The beamline will deliver monochromatized, polarization-controlled XUV radiation for...
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Dr Pere Peréz-Millán20/11/2026, 10:50Oral
The Spanish company FYLA designs and manufactures ultrafast lasers and photonics systems. This talk presents the activities of the FYLA Ultrafast Photonics R&D Lab, whose research supports the company's different business units:
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LASER Business Unit:
Research on supercontinuum sources, focused on achieving ultra-broad, ultra-flat spectra and temporally coherent pulses. -
INSPECTION...
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Hugo Pires (Group of Lasers and Plasmas, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico de Lisboa)20/11/2026, 11:35Invited
As the generation and amplification of ultrafast laser pulses have also become widespread, multidisciplinary applications ranging from fundamental physics to the biomolecular fields have proliferated.
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Recently, femtosecond technologies have been extended to high repetition rates (and high average powers) and scaled to high peak powers (high energy and short pulse duration) by using new... -
Carlos Molpeceres (Universidad Politecnica de Madrid)20/11/2026, 12:25Invited
The isolation of circulating tumor cells (CTCs) with high cell viability for further multi-omic analysis and organoid generation is a turning point in modern oncology. In recent years, CTCs and CTC cluster research have completely changed the roadmap of disruptive translational technologies in oncology, mainly because if adequate CTC isolation without cell modification could be achieved in...
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Henry Axt20/11/2026, 12:50Oral
Selective laser-induced etching (SLE) relies on ultrafast laser modification of glass followed by selective chemical removal, yet the transient mechanisms that connect laser exposure to the final etched surface morphology remain insufficiently understood. A key open question is to what extent the periodic and quasi-periodic surface patterns frequently observed after etching originate from the...
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Victor Vega Mayoral (Madrid Institute for Advanced Studies in Nanoscience, IMDEA Nanociencia)20/11/2026, 13:05Oral
Ag₂S-based nanocrystals (NCs) emerged in the recent years as highly promising emitters for deep-tissue imaging and luminescence nanothermometry. Their assets combine efficient NIR luminescence in the second biological window (1000 – 1350 nm), low cytotoxicity and large absorption cross-section. In this contribution we will focus on the light emission and photophysics properties of Ag2S NCs...
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Abhijit Dutta (IIT Kanpur)20/11/2026, 13:20Oral
Thiocarbonyl-containing compounds are known for their distinctive photophysical properties, particularly for their rapid intersystem crossing (ISC) and high triplet yield facilitated by enhanced spin–orbit coupling (SOC). However, the ISC efficiency and resulting triplet yields can vary significantly depending on molecular properties. This study explores the role of intramolecular charge...
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20/11/2026, 13:35Plenary talk
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