A Szentágothai János Kutatóközpont a PTE korszerű, nemzetközi tudományszervezési és menedzsment normák szerint kialakított új intézménye, amely az élettudományi, élettelen természettudományi, valamint környezettudományi oktatás...
The generation and application of terahertz (THz) pulses with high pulse energy and an extremely high electric field strength, which is sufficient for nonlinear THz spectroscopy applications. The search is on for new applications in the fields of materials science, medicine and life sciences.
The manipulation, acceleration, focusing and temporal shaping of electrically charged particle bunches (electrons, protons, ions) with terahertz (THz) pulses having an extremely large electric field strength. The elaboration of the theory of a potential table-top proton accelerator would facilitate the utilisation of protons with low energy for hadron therapy applications. The generation of single-cycle ultraviolet (UV) and X-ray radiation through Thomson scattering.
In the context of ELI (Extreme Light Infrastructure), the generation of attosecond light pulses is being pursued via the method of THz-assisted high harmonic generation.
The following results have been achieved thus far: The optimal parameters for the design of a tilted pulse-front based THz generator scheme will be presented. It was demonstrated that the utilisation of a longer wavelength than the conventional 800 nm in a tilted pulse-front excitation scheme renders semiconductors (such as ZnTe and GaP) more efficient than LiNbO₃. It was demonstrated that the peak THz electric field strength of LiNbO₃ can be increased by over an order of magnitude when using a pump pulse length of approximately 500 fs and cryogenic temperatures. This technique allows for the generation of single-cycle THz pulses with a pulse energy exceeding 10 mJ and a peak electric field strength of 100 MV/cm, with a central frequency of approximately 1 THz.
Furthermore, alternative LN-based sources were designed to circumvent the limitations of the conventional setup. One of the most promising alternatives is the application of volume-phased holographic gratings before the crystal.
Furthermore, the theoretical benefits of utilising ps-long CO₂ laser pulses in the generation of THz waves were also developed.
Publications of the last 3 years
Comparative analysis of optical rectification-based multicycle terahertz pulse generation techniques
L Nasi, G Illés, J Hebling, G Tóth
Optics Continuum 4 (9), 2176-2192, 2025
Progress toward an efficient, uniformly scalable lithium niobate terahertz pulse source
G Krizsán, B Jurasits, G Almási, J Hebling
Optics Letters 50 (13), 4250-4253, 2025
Comparison of CO2 Laser-pumped GaAs and ZnTe Terahertz Pulse Sources
N Gabit, G Illés, J Hebling, G Tóth
Optics, Photonics and Lasers, 131, 2025
S Turnár, Z Tibai, L Pálfalvi, C Korpa, G Almási, J Hebling
arXiv preprint arXiv:2501.16019, 2025
L Pálfalvi, ZT Godana, G Tóth, J Hebling
Optics & Laser Technology 180, 111554, 2025
Three-photon and four-photon absorption in lithium niobate measured by the Z-scan technique: erratum
I Benabdelghani, G Tóth, G Krizsán, G Bazsó, Z Szaller, N Mbithi, P Rácz, Péter Dombi, Gyula Polónyi, János Hebling
Optics Express 32 (16), 27519-27519, 2024
Bright terahertz electron gun opens new opportunities
G Polónyi, J Hebling
Nature Photonics 18 (7), 646-647, 2024
Three-photon absorption in lithium tantalate measured by the Z-scan technique
I Benabdelghani, G Bazsó, G Tóth, P Rácz, P Dombi, J Hebling, G Polónyi
Optical Materials 153, 115571, 2024
L Pálfalvi, ZT Godana, J Hebling
arXiv preprint arXiv:2406.00795, 2024
G Krizsán, Z Tibai, G Tóth, J Hebling, L Pálfalvi
Optics Express 32 (11), 18909-18915, 2024
Optical Rectification–Based Sources
G Polónyi, J Hebling
Advances in Terahertz Source Technologies, 47-81, 2024
Three-photon and four-photon absorption in lithium niobate measured by the Z-scan technique
I Benabdelghani, G Tóth, G Krizsán, G Bazsó, Z Szaller, N Mbithi, P Rácz, Péter Dombi, Gyula Polónyi, János Hebling
Optics Express 32 (5), 7030-7043, 2024
Numerical investigation of terahertz wave driven electron acceleration generated from gas jet
S Turnár, B Sarkadi, SW Jolly, J Hebling, Z Tibai
Applied Physics B 130 (2), 1-8, 2024
Possibility of CO2 laser-pumped multi-millijoule-level ultrafast pulse terahertz sources
G Tóth, G Illés, G Nazymbekov, N Mbithi, G Almási, J Hebling
Scientific Reports 14 (1), 999, 2024
Tilted pulse front pumping techniques for efficient terahertz pulse generation
G Tóth, G Polónyi, J Hebling
Light: Science & Applications 12 (1), 256, 2023
Subcycle surface electron emission driven by strong-field terahertz waveforms
S Li, A Sharma, Z Márton, PS Nugraha, C Lombosi, Z Ollmann, I Márton, ...
Nature Communications 14 (1), 6596, 2023
Focusing of Radially Polarized Electromagnetic Waves by a Parabolic Mirror
ZT Godana, J Hebling, L Pálfalvi
Photonics 10 (7), 848, 2023
G Krizsán, G Polónyi, T Kroh, G Tóth, Z Tibai, NH Matlis, G Almási, ...
Optics Letters 48 (14), 3777-3780, 2023
Granted PatentNo_ Agency Title
2025.05.06 12295092 USPTO Efficient production of high-energy ultrashort ion-, especially proton bunches
2024.11.06 3874328 EP Reflection-and/or diffraction-based method and setup to generate high-energy terahertz pulses
2024.07.31 3493657 EP Method and setup to produce relativistic electron bunches
2024.02.29 7446323 JPO Reflection and/or diffraction-based method and setup to generate high-energy terahertz pulses
2024.01.09 7416561 JPO Method for generating terahertz radiation and terahertz radiation source
2022.10.18 11474414 USPTO Reflection and/or diffraction-based method and setup to generate high-energy terahertz pulses
2021.10.06 3396447 EP Method and setup to generate terahertz radiation
2021.03.01 231120 SZTNH Eljárás és elrendezés EUV-VUV tartományba eső, néhány optikai ciklust tartalmazó koherens elektromágneses sugárzás keltésére
2020.08.18 10747086 USPTO METHOD AND SETUP TO GENERATE TERAHERTZ RADIATION SCALABLE IN ENERGY
2020.06.10 3353600 EP Method to generate terahertz radiation and terahertz radiation source
2020.05.28 231075 SZTNH Eljárás terahertzes sugárzás keltésére, valamint terahertzes sugárforrás
2019.11.19 10481468 USPTO METHOD TO GENERATE TERAHERTZ RADIATION AND TERAHERTZ RADIATION SOURCE
2019.07.23 10359687 USPTO METHOD TO GENERATE TERAHERTZ RADIATION AND TERAHERTZ RADIATION SOURCE
2019.07.10 2556407 EP Optical device for broadband nonlinear optical processes based on angular dispersion
2019.07.10 2619626 EP Pulse excited thz waveguide source based on optical rectification
2017.12.27 2965391 EP Method and arrangement to generate few optical cycle coherent electromagnetic radiation in the euv-vuv domain
2017.12.05 9837786 USPTO SHORT PERIOD UNDULATOR
2017.08.16 2848099 EP Method and setup to manipulate electrically charged particles
2017.02.28 230587 SZTNH Rövid periódusú undulátor
2017.01.17 9548584 USPTO Method and arrangement to generate few optical cycle coherent electromagnetic radiation in the EUV-VUV domain
2016.11.15 9497848 USPTO METHOD AND SETUP TO MANIPULATE ELECTRICALLY CHARGED PARTICLES
2016.01.28 230314 SZTNH Optikai eszköz szélessávú nemlineáris optikai folyamatokhoz
2015.12.28 230293 SZTNH Összeállítás és eljárás elektromosan töltött részecskék manipulálására
2015.09.08 9128349 USPTO PULSE EXCITED THZ WAVEGUIDE SOURCE BASED ON OPTICAL RECTIFICATION
2015.01.28 229943 SZTNH Optikai egyenirányításon alapuló gerjesztésű THZ-es sugárforrás
NaN WIPO (PCT) Reflection- and/or diffraction-based method and setup to generate high-energy terahertz pulses
NaN WIPO (PCT) Efficient production of high-energy ultrashort ion- especially proton bunches
Scientific research, semiconductor industry, medicine industry, security-technique
