Search Results - "Tosa, Valer"

Generation of two successive attosecond pulses in separate spectral domains by Kovács, Katalin, Tosa, Valer

“…We demonstrate that two different single attosecond pulses (SAP) can be obtained from naturally separated spectral domains formed during high-order harmonic…”
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Detailed study of quantum path interferences in high harmonic generation driven by chirped laser pulses by Csizmadia, Tamás, Gulyás Oldal, Lénárd, Ye, Peng, Majorosi, Szilárd, Tzallas, Paraskevas, Sansone, Giuseppe, Tosa, Valer, Varjú, Katalin, Major, Balázs, Kahaly, Subhendu

“…We investigate the electron quantum path interference (QPI) effects during high harmonic generation in atomic gas medium driven by ultrashort chirped laser…”
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Investigations of the Energy Transfer in the Phycobilisome Antenna of Arthrospira platensis Using Femtosecond Spectroscopy by Fălămaș, Alexandra, Porav, Sebastian A., Tosa, Valer

“…Understanding the energy transfer in phycobilisomes extracted from cyanobacteria can be used for building biomimetic hybrid systems for optimized solar energy…”
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Spectral response of chirp-dependent femtosecond laser filamentation in air by Yun, Hyeok, Cho, Wosik, Sung, Jae Hee, Yang, Jeong Moon, Choi, Jun Hee, Kovács, Katalin, Tosa, Valer, Kim, Hyung Taek

“…Filamentation is a nonlinear optical phenomenon that involves the interplay between Kerr lens self-focusing and plasma defocusing, holding promise for…”
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Modeling femtosecond pulse propagation and high harmonics generation in hollow core fibers by Tosa, Valer, Ciriolo, Anna Gabriella, Martinez Vazquez, Rebeca, Vozzi, Caterina, Stagira, Salvatore

“…One way to increase the well known low efficiency of high order harmonics generation is to place the gas medium in a hollow core waveguide. The numerical model…”
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Modeling laser induced molecule excitation using real-time time-dependent density functional theory: application to 5- and 6-benzyluracil by Bende, Attila, Toşa, Valer

“…The fully propagated real time-dependent density functional theory method has been applied to study the laser-molecule interaction in 5- and 6-benzyluracil…”
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Quasi-phase-matching high-harmonic radiation using chirped THz pulses by Kovács, Katalin, Balogh, Emeric, Hebling, János, Toşa, Valer, Varjú, Katalin

“…High-order harmonic generation in the presence of a chirped THz pulse is investigated numerically with a complete 3D nonadiabatic model. The assisting THz…”
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Reconstruction of Femtosecond Laser Pulses from FROG Traces by Convolutional Neural Networks by Tóth, István, Gherman, Ana Maria Mihaela, Kovács, Katalin, Cho, Wosik, Yun, Hyeok, Toşa, Valer

“…We report on the reconstruction of ultrashort laser pulses from computer-simulated and experimental second harmonic generation-frequency resolved optical…”
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Safety assessment of the use of recycled high-density polyethylene in cosmetics packaging based on in silico modeling migration of representative chemical contaminants for dermal sensitization and systemic endpoints by Labib, Ramez, Amin, Ripal, Lewis, Christal, Toşa, Valer, Mercea, Peter

“…•No guidelines are available to evaluate use of recycled plastics in cosmetic packaging.•We performed a risk-based assessment to evaluate use of rHDPE in…”
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Macroscopic attosecond chirp compensation by Kovács, Katalin, Tosa, Valer

“…We numerically study the physical mechanism of the chirp compensation of the attosecond XUV pulses obtained by high-order harmonic generation. We show by…”
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Artificial Neural Network Trained to Predict High-Harmonic Flux by Gherman, Ana, Kovács, Katalin, Cristea, Mircea, Toșa, Valer

“…In this work we present the results obtained with an artificial neural network (ANN) which we trained to predict the expected output of high-order harmonic…”
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Theoretical Study of Light-Induced Crosslinking Reaction Between Pyrimidine DNA Bases and Aromatic Amino Acids by Bende, Attila, Farcaş, Alex-Adrian, Toşa, Valer

“…Low-lying electronic excited states and their relaxation pathways as well as energetics of the crosslinking reaction between uracil as a model system for…”
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Characteristics of femtosecond laser pulses propagating in multiply ionized rare gases by Toşa, Valer, Kovács, Katalin, Ursescu, Daniel, Varjú, Katalin

“…A three-dimensional non-adiabatic model in combination with a rate equation model is used to characterize high-intensity (>1016W/cm2) femtosecond laser pulse…”
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Migration of stabilizers and plasticizer from recycled polyvinylchloride by Mercea, Peter Viktor, Losher, Christoph, Petrasch, Marcus, Toşa, Valer

“…The migration of lead, cadmium, and zinc stabilizers from recycled unplasticized and plasticized polyvinylchloride (PVC) into deionized water (DW), saliva…”
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Modeling extreme ultraviolet attosecond pulses in modulated waveguides by Toşa, Valer, Tóth, Istvan Ferenc, Gherman, Ana Maria Mihaela, Ciriolo, Anna Gabriella, Martínez Vázquez, Rebeca, Nistico, Alessio, Stagira, Salvatore

“…We explore via numerical modeling the generation of very short photon wavelengths in hollow core waveguides (HCW) filled with He gas at high pressures…”
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Hybrid architectures made of nonlinear-active and metal nanostructures for plasmon-enhanced harmonic generation by Falamas, Alexandra, Tosa, Valer, Farcau, Cosmin

“…Generation of laser light harmonics is one of the nonlinear optical phenomena offering unique opportunities for the development of applications in fields like…”
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On the photothermal characterization of liquid thermoelectrics. New methodology based on coupled pyroelectric-Seebeck effects, together with frequency and thickness scanning procedures by Dadarlat, Dorin, Tripon, Carmen, Tosa, Valer

“…•A new technique for thermal characterization of liquid thermoelectrics is proposed.•The technique combines two photothermal (PPE-PTE) methods.•The proposed…”
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Dynamics of laser excited colloidal gold nanoparticles functionalized with cysteine derivatives by Falamas, Alexandra, Tosa, Nicoleta, Tosa, Valer

“…The ultrafast dynamics of Au colloidal nanoparticles excited with femtosecond laser pulses is investigated experimentally. The transient absorption signal…”
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Quantum trajectories of electrons in arbitrary laser fields by KOVACS, Katalin, TOSA, Valer

“…We present a method to trace quantum trajectories of electrons in a high-order harmonic generation process. The method relies on the saddle-point technique…”
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High-Efficiency Single Attosecond Pulse Generation With a Long-Wavelength Pulse Assisted by a Weak Near-Infrared Pulse by Kovacs, Katalin, Tosa, Valer, Major, Balazs, Balogh, Emeric, Varju, Katalin

“…We model two-color high-order harmonic generation using a full 3-D nonadiabatic model and show that the presence of a weak perturbative near infrared pulse…”
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