@inproceedings{MTMT:34735663, title = {Radially Polarized Electromagnetic Wave Focused by a Segment of a Parabolic Mirror}, url = {https://m2.mtmt.hu/api/publication/34735663}, author = {Zerihun, T. Godana and Hebling, János and Pálfalvi, László}, booktitle = {Optics, Photonics and Lasers: Proceedings of the 6th International Conference on Optics, Photonics and Lasers (OPAL' 2023)}, unique-id = {34735663}, year = {2023}, pages = {64-67} } @{MTMT:34167463, title = {Subcycle Surface Electron Emission by Strong-Field THz Waveforms}, url = {https://m2.mtmt.hu/api/publication/34167463}, author = {Li, S. and Sharma, Ashutosh and Nugraha, Priyo Syamsul and Márton, Zsuzsanna and Lombosi, Csaba and Ollmann, Zoltán and Márton, István and Dombi, Péter and Hebling, János and Fülöp, József András}, booktitle = {2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)}, doi = {10.1109/CLEO/Europe-EQEC57999.2023.10232282}, unique-id = {34167463}, year = {2023}, orcid-numbers = {Sharma, Ashutosh/0000-0001-9021-4296; Márton, Zsuzsanna/0000-0001-7625-3571; Márton, István/0000-0001-7024-8245; Dombi, Péter/0000-0002-0736-3512} } @article{MTMT:33668822, title = {Coupled-channel system with anomalous thresholds and unitarity}, url = {https://m2.mtmt.hu/api/publication/33668822}, author = {Korpa, Csaba and Lutz, Matthias F. M. and Guo, Xiao-Yu and Heo, Yonggoo}, doi = {10.1103/PhysRevD.107.L031505}, journal-iso = {PHYS REV D}, journal = {PHYSICAL REVIEW D}, volume = {107}, unique-id = {33668822}, issn = {2470-0010}, year = {2023}, eissn = {2470-0029}, orcid-numbers = {Korpa, Csaba/0000-0003-3292-3435; Lutz, Matthias F. M./0000-0002-5813-8235; Heo, Yonggoo/0000-0003-0940-3175} } @article{MTMT:33541533, title = {Coupled-channel dynamics with chiral long-range forces in the open-charm sector of QCD}, url = {https://m2.mtmt.hu/api/publication/33541533}, author = {Lutz, Matthias F. M. and Guo, Xiao-Yu and Heo, Yonggoo and Korpa, Csaba}, doi = {10.1103/PhysRevD.106.114038}, journal-iso = {PHYS REV D}, journal = {PHYSICAL REVIEW D}, volume = {106}, unique-id = {33541533}, issn = {2470-0010}, year = {2022}, eissn = {2470-0029}, orcid-numbers = {Lutz, Matthias F. M./0000-0002-5813-8235; Guo, Xiao-Yu/0000-0002-0473-8913; Heo, Yonggoo/0000-0003-0940-3175; Korpa, Csaba/0000-0003-3292-3435} } @{MTMT:33082893, title = {Terahertz generation by imaging-free nonlinear echelon slab}, url = {https://m2.mtmt.hu/api/publication/33082893}, author = {Illes, Gergo and Tibai, Zoltán and Pálfalvi, László and Sarkadi, Balazs and Meszaros, Anna and Almási, Gábor and Hebling, János and Tóth, György}, booktitle = {Optica High-brightness Sources and Light-driven Interactions Congress 2022}, doi = {10.1364/EUVXRAY.2022.JW5A.13}, unique-id = {33082893}, year = {2022}, orcid-numbers = {Tibai, Zoltán/0000-0002-3196-7586} } @inproceedings{MTMT:33082678, title = {Comparison of lithium niobate based multicycle terahertz sources for pulse shape control}, url = {https://m2.mtmt.hu/api/publication/33082678}, author = {Nasi, L. and Illes, G. and Nazymbekhov, G. and Pálfalvi, László and Hebling, János and Tóth, György}, booktitle = {Optica High-brightness Sources and Light-driven Interactions Congress 2022}, doi = {10.1364/MICS.2022.MTh3C.2}, unique-id = {33082678}, year = {2022} } @article{MTMT:33077051, title = {Design of Semiconductor Contact Grating Terahertz Source with Enhanced Diffraction Efficiency}, url = {https://m2.mtmt.hu/api/publication/33077051}, author = {Tibai, Zoltán and Mbithi, Nelson and Almási, Gábor and Fülöp, József András and Hebling, János}, doi = {10.3390/cryst12081173}, journal-iso = {CRYSTALS}, journal = {CRYSTALS}, volume = {12}, unique-id = {33077051}, abstract = {We report a semiconductor contact grating terahertz source design based on a rectangular profile for phase-matched terahertz generation in the long infrared pump wavelength range. The calculations show that the best diffraction efficiency can be achieved by a filling factor significantly smaller than 50%. Furthermore, the possibility of diffraction efficiency enhancement was investigated by applying three different antireflective coating structures. Numerical simulations have indicated that at 2.06 μm and 3.0 μm pump wavelength, diffraction efficiencies greater than 91% and 89% can be achieved by adding an appropriate antireflective coating to the GaP and GaAs contact grating structure, respectively. In addition, numerical simulations were performed to investigate the influence of wall angles on diffraction efficiency. The results reveal that the wall angle does not significantly affect the diffraction efficiency: while keeping the wall angle deviation from the vertical below 25 degrees, the efficiency drop remains below 5% for otherwise optimal grating parameters.}, year = {2022}, eissn = {2073-4352}, orcid-numbers = {Tibai, Zoltán/0000-0002-3196-7586} } @article{MTMT:33066987, title = {Spatiotemporal modeling of direct acceleration with high-field terahertz pulses}, url = {https://m2.mtmt.hu/api/publication/33066987}, author = {Tibai, Zoltán and Turnár, Szabolcs and Tóth, György and Hebling, János and Jolly, Spencer W.}, doi = {10.1364/OE.461421}, journal-iso = {OPT EXPRESS}, journal = {OPTICS EXPRESS}, volume = {30}, unique-id = {33066987}, issn = {1094-4087}, abstract = {We present an improved model for electron acceleration in vacuum with high-energy THz pulses that includes spatiotemporal effects. In our calculations, we examined the acceleration with 300 GHz and 3.0 THz central frequency THz pulses with properties corresponding to common sources, and compared the Gaussian and Poisson spectral amplitudes and the associated time profiles of the electric fields. Our calculation takes into account both the longitudinal field and the spatio-spectral evolution around the focus. These aspects of the model are necessary due to the tight focusing and the duration towards a single-cycle of the THz pulses, respectively. The carrier-to-envelope phase (CEP) and the tilting angle of the coincident few- or single-cycle THz pulses must be tuned in all cases in order to optimize the acceleration scheme. We reveal additionally that electron beams with different final energies and different divergences can be generated based on simulated THz pulses having different Porras factors, describing the frequency dependence of the spatiotemporal amplitude profile, which may depend strongly on the method used to generate the single-cycle THz pulses.}, year = {2022}, pages = {32861-32870}, orcid-numbers = {Tibai, Zoltán/0000-0002-3196-7586; Jolly, Spencer W./0000-0002-5783-2081} } @article{MTMT:33032022, title = {Waveguide structure based electron acceleration using terahertz pulses}, url = {https://m2.mtmt.hu/api/publication/33032022}, author = {Turnár, Szabolcs and Krizsán, Gergő and Hebling, János and Tibai, Zoltán}, doi = {10.1364/OE.459282}, journal-iso = {OPT EXPRESS}, journal = {OPTICS EXPRESS}, volume = {30}, unique-id = {33032022}, issn = {1094-4087}, year = {2022}, pages = {27602-27608}, orcid-numbers = {Tibai, Zoltán/0000-0002-3196-7586} } @article{MTMT:32936193, title = {Single-photon sources based on asymmetric spatial multiplexing with optimized inputs}, url = {https://m2.mtmt.hu/api/publication/32936193}, author = {Ádám, Péter and Bódog, Ferenc and Koniorczyk, Mátyás and Mechler, Mátyás Illés}, doi = {10.1103/PhysRevA.105.063721}, journal-iso = {PHYS REV A}, journal = {PHYSICAL REVIEW A}, volume = {105}, unique-id = {32936193}, issn = {2469-9926}, year = {2022}, eissn = {2469-9934}, orcid-numbers = {Koniorczyk, Mátyás/0000-0002-2710-493X; Mechler, Mátyás Illés/0000-0001-5491-8915} }