@article{MTMT:34772093, title = {Nonadiabatic Charge Transfer within Photoexcited Nickel Porphyrins}, url = {https://m2.mtmt.hu/api/publication/34772093}, author = {Naumova, M.A. and Paveliuc, G. and Biednov, M. and Kubicek, K. and Kalinko, A. and Meng, J. and Liang, M. and Rahaman, A. and Abdellah, M. and Checchia, S. and Alves, Lima F. and Zalden, P. and Gawelda, W. and Bressler, C. and Geng, H. and Lin, W. and Liu, Y. and Zhao, Q. and Pan, Q. and Akter, M. and Kong, Q. and Retegan, M. and Gosztola, D.J. and Pápai, Mátyás Imre and Khakhulin, D. and Daku, M.L. and Zheng, K. and Canton, S.E.}, doi = {10.1021/acs.jpclett.4c00375}, journal-iso = {J PHYS CHEM LETT}, journal = {JOURNAL OF PHYSICAL CHEMISTRY LETTERS}, volume = {15}, unique-id = {34772093}, issn = {1948-7185}, year = {2024}, pages = {3627-3638}, orcid-numbers = {Pápai, Mátyás Imre/0000-0002-4819-0611} } @article{MTMT:34596731, title = {Three-photon and four-photon absorption in lithium niobate measured by the Z-scan technique}, url = {https://m2.mtmt.hu/api/publication/34596731}, author = {Benabdelghani, Imene and Tóth, György and Krizsán, Gergő and Bazsó, Gábor and Szaller, Zsuzsanna and Mbithi, Nelson and Rácz, Péter and Dombi, Péter and Polónyi, Gyula and Hebling, János}, doi = {10.1364/OE.505995}, journal-iso = {OPT EXPRESS}, journal = {OPTICS EXPRESS}, volume = {32}, unique-id = {34596731}, issn = {1094-4087}, abstract = {Open-aperture Z-scan measurements have been carried out to investigate the three-photon (3 PA) and four-photon absorption (4 PA) coefficients at 800 nm and 1030 nm wavelengths, respectively in congruent and stoichiometric lithium niobate (cLN, sLN) with different concentrations of Mg doping. The laser pulse duration at the two wavelengths were 40 and 190 fs. The peak intensity inside the crystals varied between approximately 110 and 550 GW/cm 2 . The 3 PA and 4 PA coefficients were evaluated using a theoretical model and the results suggest that their minima are at or around the Mg doping level corresponding to the threshold for suppressing photo-refraction for both cLN and sLN. This result can be attributed to the contribution of crystal defects to the 3 PA and 4 PA processes. Furthermore, the 4 PA at 1030 nm exhibited greater nonlinear absorption than the 3 PA at 800 nm under the same intensity level. Possible reasons for this unexpected behavior are discussed. Overall, comparing the 3 PA and 4 PA values of these crystals will enable for selection of the optimum composition of LN crystal for efficient THz generation and for other nonlinear optical processes requiring high pump intensities.}, year = {2024}, pages = {7030-7043}, orcid-numbers = {Rácz, Péter/0000-0001-5099-1031; Dombi, Péter/0000-0002-0736-3512} } @article{MTMT:34536288, title = {Structural, electrical and magnetic properties of reactively DC sputtered Cu and Ti thin films. Application to Cu/Ti neutron supermirrors for low spin-flip applications}, url = {https://m2.mtmt.hu/api/publication/34536288}, author = {Gómez-Guzmán, J.M. and Opel, M. and Veres, Tamás and Link, P. and Bottyán, László}, doi = {10.1016/j.nima.2023.169005}, journal-iso = {NUCL INSTRUM METH A}, journal = {NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT}, volume = {1059}, unique-id = {34536288}, issn = {0168-9002}, year = {2024}, eissn = {1872-9576} } @article{MTMT:34588450, title = {Long-Lived Electronic Coherences in Molecules}, url = {https://m2.mtmt.hu/api/publication/34588450}, author = {Kaufman, B. and Marquetand, P. and Rozgonyi, Tamás and Weinacht, T.}, doi = {10.1103/PhysRevLett.131.263202}, journal-iso = {PHYS REV LETT}, journal = {PHYSICAL REVIEW LETTERS}, volume = {131}, unique-id = {34588450}, issn = {0031-9007}, year = {2023}, eissn = {1079-7114} } @article{MTMT:34536298, title = {Laser irradiation effects in FeRh thin film}, url = {https://m2.mtmt.hu/api/publication/34536298}, author = {Merkel, Dániel and Sájerman, K. and Váczi, Tamás and Lenk, Sándor and Hegedűs, Gergő and Sajti, Szilárd Mihály and Németh, Attila and Gracheva, Maria and Petrik, Péter and Mukherjee, Deshabrato and Horváth, Zsolt Endre and Nagy, Dénes Lajos and Lengyel, Attila}, doi = {10.1088/2053-1591/ace4a3}, journal-iso = {MATER RES EXPRESS}, journal = {MATERIALS RESEARCH EXPRESS}, volume = {10}, unique-id = {34536298}, year = {2023}, eissn = {2053-1591}, orcid-numbers = {Váczi, Tamás/0000-0003-0142-545X; Lenk, Sándor/0000-0002-7207-0329; Sajti, Szilárd Mihály/0000-0002-8748-8242; Gracheva, Maria/0000-0001-5245-8425; Petrik, Péter/0000-0002-5374-6952; Horváth, Zsolt Endre/0000-0002-4632-0136; Nagy, Dénes Lajos/0000-0002-6790-9505} } @{MTMT:34496107, title = {Ion-implanted diced ridge waveguides in Pr:YLF}, url = {https://m2.mtmt.hu/api/publication/34496107}, author = {Hasse, K. and Suntsov, S. and Püschel, S. and Tanaka, H. and Kränkel, C. and Bányász, István and Kip, D.}, booktitle = {2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)}, doi = {10.1109/CLEO/EUROPE-EQEC57999.2023.10231430}, unique-id = {34496107}, year = {2023} } @article{MTMT:34400257, title = {Determining the Quintet Lifetimes in Side-ring Substituted [Fe(terpy)2]2+ Complexes}, url = {https://m2.mtmt.hu/api/publication/34400257}, author = {Vancza, Andor and Kapta, Marcell Levente and Papp, Mariann and Vankó, György and Keszthelyi, Tamás}, doi = {10.3311/PPch.22748}, journal-iso = {PERIOD POLYTECH CHEM ENG}, journal = {PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING}, volume = {67}, unique-id = {34400257}, issn = {0324-5853}, year = {2023}, eissn = {1587-3765}, pages = {547-556}, orcid-numbers = {Vankó, György/0000-0002-3095-6551} } @article{MTMT:34377071, title = {Ultrafast 3MLCT quenching and vibrational coherence: excited-state dynamics of the first-discovered Fe(II)-carbene sensitiser resolved}, url = {https://m2.mtmt.hu/api/publication/34377071}, author = {Pápai, Mátyás Imre and Rozgonyi, Tamás and Vankó, György}, doi = {10.1039/D3TA05985E}, journal-iso = {J MATER CHEM A}, journal = {JOURNAL OF MATERIALS CHEMISTRY A}, volume = {11}, unique-id = {34377071}, issn = {2050-7488}, abstract = {The application of N-heterocyclic carbene (NHC) ligands represents a groundbreaking advance towards environment-friendly light-harvesting complexes, yet, even the excited-state dynamics of the first-discovered Fe-NHC photosensitiser [Fe(bmip)2]2+ (bmip = 2,6-bis(3-methyl-imidazole-1-ylidine)-pyridine) remain controversial. Using full-dimensional trajectory surface hopping (TSH) spin-vibronic dynamics simulations, we fully resolve and clarify the deactivation mechanism of [Fe(bmip)2]2+ . In agreement with the most recent fs-resolved X-ray experiments, we find that the excited-state population branches into triplet metal-to-ligand charge transfer (3MLCT) and metal-centered states (3MC) on early sub-ps timescales (~200 fs). The ultrafast 3MLCT quenching by 3MC is driven by multidimensional excited-state ligand motion; it is this deactivation process that ultimately weakens the photosensitising efficiency of [Fe(bmip)2]2+. Crucially, the preservation of vibrational coherence along the covalent Fe-C bonds (~300 fs vibrational period) and the appearance of resulting coherent oscillations in various time-resolved experimental data unambiguously evidences the presence of the early sub-ps 3MC component.}, year = {2023}, eissn = {2050-7496}, pages = {25955-25962}, orcid-numbers = {Pápai, Mátyás Imre/0000-0002-4819-0611; Vankó, György/0000-0002-3095-6551} } @article{MTMT:34224920, title = {Nizkoperiodicheskie mnogosloinye plenki Ti/NixMoy s variruemoi kvaziodnorodnoi strukturoi dlya neitronnoi reflektometrii}, url = {https://m2.mtmt.hu/api/publication/34224920}, author = {Avdeev, MV and Gapon, IV and Merkel, Dániel and Yerdauletov, M and Djanseitov, DM and Tropin, TV}, journal-iso = {POVERHNOST}, journal = {POVERKHNOST: RENTGENOVSKIE SINKHROTRONNYE I NEITRONNYE ISSLEDOVANIYA}, unique-id = {34224920}, year = {2023}, eissn = {1028-0960}, pages = {46-51} } @article{MTMT:34207813, title = {X-ray spectroscopy station for sample characterization at ELI Beamlines}, url = {https://m2.mtmt.hu/api/publication/34207813}, author = {Zymaková, A. and Precek, M. and Picchiotti, A. and Błachucki, W. and Zymak, I. and Szlachetko, J. and Vankó, György and Németh, Zoltán and Sá, J. and Wiste, T. and Andreasson, J.}, doi = {10.1038/s41598-023-43924-y}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {13}, unique-id = {34207813}, issn = {2045-2322}, year = {2023}, eissn = {2045-2322}, orcid-numbers = {Vankó, György/0000-0002-3095-6551} }