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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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