Terahertz Spectroscopy and Nonlinear Optical Phenomena group
The TSNOP research group focuses on generating and characterizing terahertz radiation and microfabricating optical elements using ultrafast laser systems. They apply Laser Induced Breakdown Spectroscopy (LIBS) to monitor plasma dynamics induced by femtosecond laser pulses, essential for understanding laser-material interactions. TSNOP also conducts advanced numerical simulations of nonlinear optical phenomena and terahertz wave propagation through complex materials. Collaborating with academic and industrial partners, the group supports optical applications and provides facilities for feasibility studies and batch production at the "NAGLIS" open access facility, advancing both theoretical knowledge and technological innovations in optical applications.
- Development of novel methods for terahertz radiation generation, characterization and its applications
- Numerical simulation of nonlinear optical phenomena in air including third harmonic and terahertz radiation generation
- Microfabrication of transparent and metallic materials with femtosecond laser systems in order to produce various compact elements (filters, lenses, polarizers) suitable for terahertz spectral range
- Numerical modelling of propagation of THz radiation through periodically modulated surface-relief gratings
- Laser-Induced Breakdown Spectroscopy (LIBS) research and its application for monitoring plasma induced by femtosecond laser pulses in air
Research
List of main publications:
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V. Vaicaitis, M. Ivanov, K. Adomavicius, Z. Svirskas, U. Morgner, I. Babushkin, Influence of laser-preformed plasma on THz wave generation in air by bichromatic laser pulses, Laser physics, 28, art. no 095402 (2018).
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J. Skruibis, O. Balachninaite, S. Butkus, V. Vaicaitis, V. Sirutkaitis, Multiple-Pulse Laser-Induced Breakdown Spectroscopy for Monitoring the Femtosecond Laser Micromachining Process of Glass, Optics and Laser Technology, Vol. 111, pp. 295-302 (2019).
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O. Balachninaite, V. Tamuliene, L. Eicas, V. Vaicaitis, Laser micromachining of steel and copper using femtosecond laser pulses in GHz burst mode, Results in Physics, Vol. 22, p. 103847 (2021), https://doi.org/10.1016/j.rinp.2021.103847.
-
D. Buožius, B. Motiejūnas, V. Vaičaitis, and V. Tamulienė, Emission of conical THz radiation induced by bichromatic pump X waves in an air plasma, Phys. Rev. A 105, 023521 (2022).
-
O. Balachninaitė, J. Skruibis, A. Matijošius and V. Vaičaitis, Temporal and spatial properties of plasma induced by infrared femtosecond laser pulses in air, Plasma Sources Sci. Technol. 31(4), 045001 (2022).
-
V. Vaičaitis, V. Tamulienė, Beam-distortion enhanced terahertz radiation generation in air, Results in Physics, 42, 105985 (2022)
-
Babushkin, I., Galán, Á.J., de Andrade, J.R.C. et al. All-optical attoclock for imaging tunnelling wavepackets. Nature physics 18, 417–422 (2022).
-
V. Vaičaitis, O. Balachninaitė, A. Matijošius, I. Babushkin, and U. Morgner, Direct time-resolved plasma characterization with broadband terahertz light pulses, Phys. Rev. E 107, 015201 (2023).
Articles
All
J. Banys, S. Armalyte, J. Pimpė, O. Balachninaitė, V. Jarutis, J. Vengelis, Enhancing conversion efficiency of MgO:PPLN and Rb:PPKTP crystal-based subnanosecond optical parametric generators by utilizing a supercontinuum seed, Infrared Physics and Technology, 137, 105158 (2023);https://doi.org/10.1016/j.infrared.2024.105158.
V. Tamulienė, G. Stanionytė, T. Latvys, J. Vengelis, Subnanosecond visible two-stage optical parametric generator and amplifier based on MgO:PPLN and LBO crystals at strong pump depletion, Heliyon, 10, e37513 (2024). DOI: https://doi.org/10.1016/j.heliyon.2024.e37513.
J. Banys, S. Armalite, J. Pimpė, O. Balachninaitė, V. Jarutis, J. Vengelis, Subnanosecond microlaser pumped fan-out grating design MgO:PPLN optical parametric generator continuously tunable from near- to mid-infrared, Optics & Laser Technology, vol. 171, 110433, ISSN 0030-3992 (2024); doi: 10.1016/j.optlastec.2023.110433
M. Kolenda, D. Kezys, T. Grinys, A. Vaitkevičus, A. Kadys, I. Reklaitis, V. Vaičaitis, R. Petruškevičius & R. Tomašiūnas, Green second-harmonic generation in a periodically poled planar GaN waveguide, Opt. Quant. Electron. 56, 778 (2024). https://doi.org/10.1007/s11082-024-06506-4.
G. Zaremba , D. Paipulas, V. Vaičaitis, and O. Balachninaite, Effect of Femtosecond Ultraviolet and Infrared Laser Wavelength on Plasma Characteristics of Metals, Ceramics and Glass Samples Using Femtosecond Laser-Induced Breakdown Spectroscopy, Applied Spectroscopy, vol. 78 (6), 579-590 (2024). https://doi.org/10.1177/00037028241240782.
D. Buožius, G. Balčas, V. Tamulienė, I. Babushkin, U. Morgner, V. Vaičaitis, Terahertz and far infrared radiation generation in air plasma created by bichromatic subpicosecond laser pulses, Appl. Phys. Lett., V. 124, p. 071113 (2024). DOI: https://doi.org/10.1063/5.0188581. Publication in Kudos: https://link.growkudos.com/1ea8d1n045c.
T. Bukelis, E. Gaižauskas, O. Balachninaitė, D. Paipulas, Femtosecond IR and UV laser induced periodic structures on steel and copper surfaces, Surfaces and Interfaces, 102869, ISSN 2468-0230 (2023); doi: 10.1016/j.surfin.2023.102869.
Galmed, A. H., Balachninaite, Ona; Nassef, O. Aied, Effect of laser pulse duration on relative hardness estimation using LIBS, Optics and Laser Technology, 161, 109184 (2023); doi: 10.1016/j.optlastec.2023.109184.
J. Banys, J. Pimpė, O. Balachninaitė, V. Jarutis, J. Vengelis, Non-destructive periodic poling quality evaluation of MgO:PPLN and Rb:PPKTP crystals based on crystal translation and parametric light generation, Optik. Munich:Elsevier, vol. 277, art. no. 170686, p. [1-9] (2023); https://doi.org/10.1016/j.ijleo.2023.170686.
Semaltianos, Nikolaos G.; Balachninaitė, Ona; Juškėnas, Remigijus; Drabavičius, Audrius; Niaura, Gediminas; Hendry, Euan, “Femtosecond laser ablation of a bulk graphite target in water for polyyne and nanomaterial synthesis”, Applied sciences. Basel : MDPI AG. 2023, vol. 13, iss. 18, art. no. 10388, p. 1-14.
J. Banys, J. Pimpė, O. Balachninaitė, V. Jarutis, J. Vengelis, Subnanosecond microlaser pumped fan-out grating design MgO:PPLN optical parametric generator continuously tunable from near- to mid-infrared, Optics and Laser Technology, 171, 110433 (2023); https://doi.org/10.1016/j.optlastec.2023.110433.
V. Vaičaitis, O. Balachninaitė, A. Matijošius, I. Babushkin, and U. Morgner, Direct time-resolved plasma characterization with broadband terahertz light pulses, Phys. Rev. E 107, 015201 (2023). https://doi.org/10.1103/PhysRevE.107.015201
J. Banys, J. Savickyte, O. Balachninaite, S. Armalyte, V. Tamuliene, V. Jarutis, J. Vengelis, Performance investigation of high-efficiency widely tunable subnanosecond optical parametric generator and amplifier based on MgO: PPLN, Optics Express, 30, 459826 (2022) https://doi.org/10.1364/oe.459826.
Babushkin, I., Galán, Á.J., de Andrade, J.R.C., Husakou A., Morales F., Kretschmar M., Nagy T., Vaičaitis V., Shi L., Zuber D., Bergé L., Skupin S., Nikolaeva I. A., Panov N. A., Shipilo D. E., Kosareva O. G., Pfeiffer A. D., Demircan A., Vrakking M. J. J., Morgner U. & Ivanov M. All-optical attoclock for imaging tunnelling wavepackets. Nature physics 18, 417–422 (2022). https://doi.org/10.1038/s41567-022-01505-2
D. Buožius, B. Motiejūnas, V. Vaičaitis, and V. Tamulienė, Emission of conical THz radiation induced by bichromatic pump X waves in an air plasma, Phys. Rev. A 105, 023521 (2022).
O. Balachninaitė, J. Skruibis, A. Matijošius and V. Vaičaitis, Temporal and spatial properties of plasma induced by infrared femtosecond laser pulses in air, Plasma Sources Sci. Technol. 31(4), 045001 (2022).
V. Vaičaitis, V. Tamulienė, Beam-distortion enhanced terahertz radiation generation in air, Results in Physics, 42, 105985 (2022).
O. Balachninaitė, V. Tamulienė, L. Eičas, V.Vaičaitis, Laser micromachining of steel and copper using femtosecond laser pulses in GHz burst mode, Results in Physics, 22, Article number: 103847 (2021).https://doi.org/10.1016/j.rinp.2021.103847
V. Tamulienė, D. Buožius, and V. Vaičaitis. Plasma-assisted temporal shifts of bichromatic femtosecond laser pulses in air, Phys. Rev. A, V. 103 (3), Art. No. 033502 (2021).
V. Tamulienė, G. Juškevičiūtė, D. Buožius, V. Vaičaitis, I. Babushkin & U. Morgner, Influence of tunnel ionization to third-harmonic generation of infrared femtosecond laser pulses in air, Scientific Reports, V. 10, Article number: 17437 (2020).https://doi.org/10.1038/s41598-020-74263-x.
C. Tailliez, A. Stathopulos, S. Skupin, D Buožius, I Babushkin, V Vaičaitis and L. Berge, Terahertz pulse generation by two-color laser fields with circular polarization, New J. Phys. V. 22, Article number: 103038 (2020).https://iopscience.iop.org/article/10.1088/1367-2630/abb863/meta.
J. Skruibis, O. Balachninaite, S. Butkus, V. Vaicaitis, V. Sirutkaitis, “Multiple-Pulse Laser-Induced Breakdown Spectroscopy for Monitoring the Femtosecond Laser Micromachining Process of Glass”, Optics and Laser Technology, Vol. 111, pp. 295-302 (2019).
V. Vaičaitis, O. Balachninaitė, U. Morgner, and I. Babushkin, Terahertz radiation generation by three-color laser pulses in air filament, J. Appl. Phys. 125(17), 173103 (2019); doi: 10.1063/1.5078683.
V. Vaičaitis, Four-photon resonantly enhanced six-wave mixing and third-harmonic generation in potassium vapour, Appl. Phys. B (2019) 125(6): 95. https://doi.org/10.1007/s00340-019-7206-z.
C. S. Ponseca, Jr., A. Arlauskas, H. Yu, F. Wang, I. Nevinskas, E. Dūda, V. Vaičaitis, J. Eriksson, J. Bergqvist, X.-K. Liu, M. Kemerink, A. Krotkus, O. Inganas, and F.Gao, Pulsed terahertz emission from solution-processed lead iodide perovskite films, ACS Photonics, 6(5), 1175−1181 (2019).
L. Mačernytė, J. Skruibis, V. Vaičaitis, R. Sirutkaitis and O. Balachninaitė, Femtosecond laser micromachining of soda–lime glass in ambient air and under various aqueous solutions, Micromachines, 10(6), 354 (2019); https://doi.org/10.3390/mi10060354.
M. Ivanov, I. Thiele, L. Bergé, S. Skupin, D. Buožius, and V. Vaičaitis, Intensity modulated terahertz vortex wave generation in air plasma by two-color femtosecond laser pulses, Optics. Lett. V. 44 (15), 3889-3892 (2019). https://doi.org/10.1364/OL.44.003889.
2024
J. Banys, S. Armalyte, J. Pimpė, O. Balachninaitė, V. Jarutis, J. Vengelis, Enhancing conversion efficiency of MgO:PPLN and Rb:PPKTP crystal-based subnanosecond optical parametric generators by utilizing a supercontinuum seed, Infrared Physics and Technology, 137, 105158 (2023); https://doi.org/10.1016/j.infrared.2024.105158.
V. Tamulienė, G. Stanionytė, T. Latvys, J. Vengelis, Subnanosecond visible two-stage optical parametric generator and amplifier based on MgO:PPLN and LBO crystals at strong pump depletion, Heliyon, 10, e37513 (2024). DOI: https://doi.org/10.1016/j.heliyon.2024.e37513.
J. Banys, S. Armalite, J. Pimpė, O. Balachninaitė, V. Jarutis, J. Vengelis, Subnanosecond microlaser pumped fan-out grating design MgO:PPLN optical parametric generator continuously tunable from near- to mid-infrared, Optics & Laser Technology, vol. 171, 110433, ISSN 0030-3992 (2024); doi: 10.1016/j.optlastec.2023.110433.
M. Kolenda, D. Kezys, T. Grinys, A. Vaitkevičus, A. Kadys, I. Reklaitis, V. Vaičaitis, R. Petruškevičius & R. Tomašiūnas, Green second-harmonic generation in a periodically poled planar GaN waveguide, Opt. Quant. Electron. 56, 778 (2024).https://doi.org/10.1007/s11082-024-06506-4
G. Zaremba , D. Paipulas, V. Vaičaitis, and O. Balachninaite, Effect of Femtosecond Ultraviolet and Infrared Laser Wavelength on Plasma Characteristics of Metals, Ceramics and Glass Samples Using Femtosecond Laser-Induced Breakdown Spectroscopy, Applied Spectroscopy, vol. 78 (6), 579-590 (2024). https://doi.org/10.1177/00037028241240782.
D. Buožius, G. Balčas, V. Tamulienė, I. Babushkin, U. Morgner, V. Vaičaitis, Terahertz and far infrared radiation generation in air plasma created by bichromatic subpicosecond laser pulses, Appl. Phys. Lett., V. 124, p. 071113 (2024). DOI: https://doi.org/10.1063/5.0188581. Publication in Kudos: https://link.growkudos.com/1ea8d1n045c.
2023
T. Bukelis, E. Gaižauskas, O. Balachninaitė, D. Paipulas, Femtosecond IR and UV laser induced periodic structures on steel and copper surfaces, Surfaces and Interfaces, 102869, ISSN 2468-0230 (2023); https://doi.org/10.1016/j.surfin.2023.102869.
Galmed, A. H., Balachninaite, Ona; Nassef, O. Aied, Effect of laser pulse duration on relative hardness estimation using LIBS, Optics and Laser Technology, 161, 109184 (2023); https://doi.org/10.1016/j.optlastec.2023.109184.
J. Banys, J. Pimpė, O. Balachninaitė, V. Jarutis, J. Vengelis, Non-destructive periodic poling quality evaluation of MgO:PPLN and Rb:PPKTP crystals based on crystal translation and parametric light generation, Optik. Munich:Elsevier, vol. 277, art. no. 170686, p. [1-9] (2023);https://doi.org/10.1016/j.ijleo.2023.170686.
Semaltianos, Nikolaos G.; Balachninaitė, Ona; Juškėnas, Remigijus; Drabavičius, Audrius; Niaura, Gediminas; Hendry, Euan, “Femtosecond laser ablation of a bulk graphite target in water for polyyne and nanomaterial synthesis”, Applied sciences. Basel : MDPI AG. 2023, vol. 13, iss. 18, art. no. 10388, p. 1-14.
J. Banys, J. Pimpė, O. Balachninaitė, V. Jarutis, J. Vengelis, Subnanosecond microlaser pumped fan-out grating design MgO:PPLN optical parametric generator continuously tunable from near- to mid-infrared, Optics and Laser Technology, 171, 110433 (2023);https://doi.org/10.1016/j.optlastec.2023.110433.
V. Vaičaitis, O. Balachninaitė, A. Matijošius, I. Babushkin, and U. Morgner, Direct time-resolved plasma characterization with broadband terahertz light pulses, Phys. Rev. E 107, 015201 (2023). https://doi.org/10.1103/PhysRevE.107.015201
2022
J. Banys, J. Savickyte, O. Balachninaite, S. Armalyte, V. Tamuliene, V. Jarutis, J. Vengelis, Performance investigation of high-efficiency widely tunable subnanosecond optical parametric generator and amplifier based on MgO: PPLN, Optics Express, 30, 459826 (2022) https://doi.org/10.1364/oe.459826.
Babushkin, I., Galán, Á.J., de Andrade, J.R.C., Husakou A., Morales F., Kretschmar M., Nagy T., Vaičaitis V., Shi L., Zuber D., Bergé L., Skupin S., Nikolaeva I. A., Panov N. A., Shipilo D. E., Kosareva O. G., Pfeiffer A. D., Demircan A., Vrakking M. J. J., Morgner U. & Ivanov M. All-optical attoclock for imaging tunnelling wavepackets. Nature physics 18, 417–422 (2022). https://doi.org/10.1038/s41567-022-01505-2
D. Buožius, B. Motiejūnas, V. Vaičaitis, and V. Tamulienė, Emission of conical THz radiation induced by bichromatic pump X waves in an air plasma, Phys. Rev. A 105, 023521 (2022).
O. Balachninaitė, J. Skruibis, A. Matijošius and V. Vaičaitis, Temporal and spatial properties of plasma induced by infrared femtosecond laser pulses in air, Plasma Sources Sci. Technol. 31(4), 045001 (2022).
V. Vaičaitis, V. Tamulienė, Beam-distortion enhanced terahertz radiation generation in air, Results in Physics, 42, 105985 (2022). https://doi.org/10.1016/j.rinp.2022.105985.
2021
O. Balachninaitė, V. Tamulienė, L. Eičas, V.Vaičaitis, Laser micromachining of steel and copper using femtosecond laser pulses in GHz burst mode, Results in Physics, 22, Article number: 103847 (2021). https://doi.org/10.1016/j.rinp.2021.103847
V. Tamulienė, D. Buožius, and V. Vaičaitis. Plasma-assisted temporal shifts of bichromatic femtosecond laser pulses in air, Phys. Rev. A, V. 103 (3), Art. No. 033502 (2021).
2020
V. Tamulienė, G. Juškevičiūtė, D. Buožius, V. Vaičaitis, I. Babushkin & U. Morgner, Influence of tunnel ionization to third-harmonic generation of infrared femtosecond laser pulses in air, Scientific Reports, V. 10, Article number: 17437 (2020).https://doi.org/10.1038/s41598-020-74263-x.
C. Tailliez, A. Stathopulos, S. Skupin, D Buožius, I Babushkin, V Vaičaitis and L. Berge, Terahertz pulse generation by two-color laser fields with circular polarization, New J. Phys. V. 22, Article number: 103038 (2020).https://iopscience.iop.org/article/10.1088/1367-2630/abb863/meta.
2019
J. Skruibis, O. Balachninaite, S. Butkus, V. Vaicaitis, V. Sirutkaitis, “Multiple-Pulse Laser-Induced Breakdown Spectroscopy for Monitoring the Femtosecond Laser Micromachining Process of Glass”, Optics and Laser Technology, Vol. 111, pp. 295-302 (2019).
V. Vaičaitis, O. Balachninaitė, U. Morgner, and I. Babushkin, Terahertz radiation generation by three-color laser pulses in air filament, J. Appl. Phys. 125(17), 173103 (2019); doi: 10.1063/1.5078683.
V. Vaičaitis, Four-photon resonantly enhanced six-wave mixing and third-harmonic generation in potassium vapour, Appl. Phys. B (2019) 125(6): 95. https://doi.org/10.1007/s00340-019-7206-z.
C. S. Ponseca, Jr., A. Arlauskas, H. Yu, F. Wang, I. Nevinskas, E. Dūda, V. Vaičaitis, J. Eriksson, J. Bergqvist, X.-K. Liu, M. Kemerink, A. Krotkus, O. Inganas, and F.Gao, Pulsed terahertz emission from solution-processed lead iodide perovskite films, ACS Photonics, 6(5), 1175−1181 (2019).
L. Mačernytė, J. Skruibis, V. Vaičaitis, R. Sirutkaitis and O. Balachninaitė, Femtosecond laser micromachining of soda–lime glass in ambient air and under various aqueous solutions, Micromachines, 10(6), 354 (2019); https://doi.org/10.3390/mi10060354
M. Ivanov, I. Thiele, L. Bergé, S. Skupin, D. Buožius, and V. Vaičaitis, Intensity modulated terahertz vortex wave generation in air plasma by two-color femtosecond laser pulses, Optics. Lett. V. 44 (15), 3889-3892 (2019). DOI https://doi.org/10.1364/OL.44.003889.
Conferences
All
Virgilijus Vaičaitis, “Generation of broadband terahertz radiation in laser-created air
plasma and its applications”, invited presentation in “2nd International Congress and Expo on Optics, Photonics and Lasers” (EUROPL2024), June 13-14, 2024, Nice, France. https://signatureconferences.com/europl2024/.
Virgilijus Vaičaitis, “Mid-infrared radiation generation in air and its application for plasma characterization”, invited presentation in “The Extreme Light Infrastructure User Meeting, 26-27 June 2024, ELI Beamlines Facility in Dolní Břežany, Czech Republic. https://indico.eli-laser.eu/event/47/page/180-eli-user-meeting-26-27-june.
T. Latvys, V. Tamulienė, „Investigation of pump depletion in subnanosecond optical parametric generation based on PPLN crystal“, 67th International Conference for Students of Physics and Natural Sciences Open Readings 2024, April 23-26, 2024, Vilnius, Lithuania, Book of Abstracts, P1, p. 137.https://openreadings.eu/wp-content/uploads/2024/05/2024_abstract_book.pdf.
Ona Balachninaitė, “Comparative studies of ultraviolet and infrared femtosecond laser-induced plasma spectroscopy”, (oral presentation), Nordic LIBS 2024, 5–6 March 2024 Tampere University, Finland. https://events.tuni.fi/uploads/sites/1276/1276/12/053c41a6-nordic_libs_full_program.pdf.
G. Balčas, D. Buožius, V. Tamulienė ir V. Vaičaitis, Plačiajuostės terahercų dažnio spinduliuotės generavimas oro plazmoje, indukuotoje kompaktiško Yb:KGW lazerio impulsais. 45-oji Lietuvos nacionalinė fizikos konferencija, Vilnius, 2023 m. spalio 23-25 d. https://www.ff.vu.lt/external/ff/files/LNFK45/LNFK_abstracts/12_Zodinis_Vaicaitis_2023-09-14_22-15-20_Placiajuostes_terahercu_daznio_spinduliuotes_generavimas_oro_plazmoje__indukuotoje_kompaktisko_Yb_KGW_lazerio_impulsais__vaicaitis-thz-lnfk-45.pdf
Viktorija Tamulienė, Ona Balachninaitė, Virgilijus Vaičaitis, Plačiajuostis terahercų spinduliuotės fiultravimas periodinėje silicio struktūroje. 45-oji Lietuvos nacionalinė fizikos konferencija, Vilnius, 2023 m. spalio 23-25 d. https://www.ff.vu.lt/external/ff/files/LNFK45/LNFK_abstracts/12_Zodinis_Tamuliene_2023-09-12_14-03-05_Placiajuotis_terahercu_spinduliuotes_filtravimas_periodineje_silicio_strukturoje_viktorija-tamuliene-galutinis-lnfk-45.pdf.
Terahertz pulse generation by multi-color laser fields with linear vs. circular polarization, Stathopulos, A; Tailliez, C; Buozius, D; Babushkin, I; Vaicaitis, V; Skupin, S; Berge, L Book. Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), 21 – 25 JUNE 2021, ELECTR NETWORK
Optimization of terahertz radiation generation in air by adjusting time delay between the pump pulses, Buozius, D; Tamuliene, V; Vaicaitis, V, 2021, (CLEO/EUROPE-EQEC) Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), ELECTR NETWORK, JUN 21-25, 2021 Poster
D. Buozius, V. Tamuliene, and V. Vaicaitis, "Temporal Modulation of Powerful Bichromatic Femtosecond Laser Pulses in Air," in Conference on Lasers and Electro-Optics, (CLEO: Science and Innovations 2021, San Jose, California, United States 9–14 May 2021) J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper JTh3A.92. Posteris
V. Tamulienė, D. Buožius, B. Motiejūnas, V. Vaičaitis, “Kūginė terahercų spinduliuotė žadinama bichromatiniais lazerio impulsais oro plazmoje: kūgio kampo įvertinimas”, 44-oji Lietuvos nacionalinė fizikos konferencija, 2021 m. spalio 6-8 d., Vilnius. Pranešimų medžiaga, p. 100. ISBN 978-609-95511-8-0. (žodinis, V. Tamulienė)
V. Tamuliené, G. Juškevičiūtė, D. Buožius, V. Vaičaitis, I. Babushkin, and U. Morgner, Evolution of the Third-Harmonic X-Waves Generated by Femtosecond Laser Pulses in Air, Nonlinear Photonics 2020, Washington, DC United States, 13–16 July 2020, OSA Technical Digest (Optical Society of America, 2020), paper NpTu4D.1,https://doi.org/10.1364/NP.2020.NpTu4D.1.
V. Vaičaitis, M. Ivanov, I. Thiele, D. Buožius, I. Juchneviciute, S. Skupin, L.Bergé, Generation of broadband THz beams with azimuthally modulated phase and intensity by femtosecond laser pulses in air plasma, International conference “Ultrafast optics XII”, Bol, Croatia, October 6–11, 2019.
M. Ivanov, I. Thiele, L. Bergé, S. Skupin, D. Buožius, and V. Vaičaitis, Vortex terahertz wave generation in air by femtosecond optical vortex pulses, Proc. SPIE 11124, Terahertz Emitters, Receivers, and Applications X, 111240B (6 September 2019); https://doi.org/10.1117/12.2529247
M. Ivanov, I. Thiele, L. Bergé, S. Skupin, D. Buožius, and V. Vaičaitis, Vortex terahertz wave generation in air by femtosecond optical vortex pulses, SPIE Optical Engineering + Applications, 2019, San Diego, California, United States. 6 September 2019 Žodinis pranešimas.
V. Vaičaitis, M. Ivanov, I. Thiele, D. Buožius, I. Juchneviciute, S. Skupin, L.Bergé, Generation of broadband THz beams with azimuthally modulated phase and intensity by femtosecond laser pulses in air plasma, International conference “Ultrafast optics XII”, Bol, Croatia, October 6–11, 2019. Stendinis pranešimas.
M. Ivanov, I. Thiele, L. Bergé, S. Skupin, D. Buožius, V. Vaičaitis, Terahertz Wave Generation in Air by Femtosecond Optical Vortex Pulses, CLEO/EUROPE-EQEC 2019, 23-27 June 2019, Munich, Germany. Žodinis pranešimas.
M. Ivanov, I. Thiele, S. Skupin, D. Buožius, V. Vaičaitis, Terahertz Wave Generation in Air by Femtosecond Optical Vortex Pulses, Optics & Photonics days, Espoo, Finland 27 – 29 May, 2019. Žodinis pranešimas.
Subcycle dynamics of ionization revealed via polarization of lowest harmonics
Babushkin, I, Galan, AJ, Vaicaitis, V, Husakou, A , Morales, F, Demircan, A, Andrade, JRC, Morgner, U, Ivanov, M, 2019 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) MAY 05-10, 2019, San Jose, CA
V. Tamulienė, V. Vaičaitis, Keturbangio maišymo ore indukuoto dviejų spalvų femtosekundiniais lazerio impulsais eksperimentinis ir skaitmeninis tyrimas, 43-oji Lietuvos nacionalinė fizikos konferencija, 2019 m. spalio 3-5 d., Kaunas. Pranešimų medžiaga, p. 176 (Stendinis pranešimas, mano). e-ISBN 978-609-02-1638-5, DOI: http://dx.doi.org/10.5755/e01.9786090216385
Optical attoclock using terahertz radiation, Babushkin, I, Galan, AJ, Vaicaitis, V, Husakou, A , Morales, F, Demircan, A, Andrade, JRC Morgner, U, Ivanov, M, (CLEO/EUROPE-EQEC). MeetingConference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, GERMANY, JUN 23-27, 2019
2024
Virgilijus Vaičaitis, “Generation of broadband terahertz radiation in laser-created air
plasma and its applications”, invited presentation in “2nd International Congress and Expo on Optics, Photonics and Lasers” (EUROPL2024), June 13-14, 2024, Nice, France. https://signatureconferences.com/europl2024/.
Virgilijus Vaičaitis, “Mid-infrared radiation generation in air and its application for plasma characterization”, invited presentation in “The Extreme Light Infrastructure User Meeting, 26-27 June 2024, ELI Beamlines Facility in Dolní Břežany, Czech Republic. https://indico.eli-laser.eu/event/47/page/180-eli-user-meeting-26-27-june.
T. Latvys, V. Tamulienė, „Investigation of pump depletion in subnanosecond optical parametric generation based on PPLN crystal“, 67th International Conference for Students of Physics and Natural Sciences Open Readings 2024, April 23-26, 2024, Vilnius, Lithuania, Book of Abstracts, P1, p. 137.https://openreadings.eu/wp-content/uploads/2024/05/2024_abstract_book.pdf.
Ona Balachninaitė, “Comparative studies of ultraviolet and infrared femtosecond laser-induced plasma spectroscopy”, (oral presentation), Nordic LIBS 2024, 5–6 March 2024 Tampere University, Finland. https://events.tuni.fi/uploads/sites/1276/1276/12/053c41a6-nordic_libs_full_program.pdf.
2023
G. Balčas, D. Buožius, V. Tamulienė ir V. Vaičaitis, Plačiajuostės terahercų dažnio spinduliuotės generavimas oro plazmoje, indukuotoje kompaktiško Yb:KGW lazerio impulsais. 45-oji Lietuvos nacionalinė fizikos konferencija, Vilnius, 2023 m. spalio 23-25 d. https://www.ff.vu.lt/external/ff/files/LNFK45/LNFK_abstracts/12_Zodinis_Vaicaitis_2023-09-14_22-15-20_Placiajuostes_terahercu_daznio_spinduliuotes_generavimas_oro_plazmoje__indukuotoje_kompaktisko_Yb_KGW_lazerio_impulsais__vaicaitis-thz-lnfk-45.pdf
Viktorija Tamulienė, Ona Balachninaitė, Virgilijus Vaičaitis, Plačiajuostis terahercų spinduliuotės fiultravimas periodinėje silicio struktūroje. 45-oji Lietuvos nacionalinė fizikos konferencija, Vilnius, 2023 m. spalio 23-25 d. https://www.ff.vu.lt/external/ff/files/LNFK45/LNFK_abstracts/12_Zodinis_Tamuliene_2023-09-12_14-03-05_Placiajuotis_terahercu_spinduliuotes_filtravimas_periodineje_silicio_strukturoje_viktorija-tamuliene-galutinis-lnfk-45.pdf.
2021
Terahertz pulse generation by multi-color laser fields with linear vs. circular polarization, Stathopulos, A; Tailliez, C; Buozius, D; Babushkin, I; Vaicaitis, V; Skupin, S; Berge, L Book. Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), 21 – 25 JUNE 2021, ELECTR NETWORK
Optimization of terahertz radiation generation in air by adjusting time delay between the pump pulses, Buozius, D; Tamuliene, V; Vaicaitis, V, 2021, (CLEO/EUROPE-EQEC) Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), ELECTR NETWORK, JUN 21-25, 2021 Poster
D. Buozius, V. Tamuliene, and V. Vaicaitis, "Temporal Modulation of Powerful Bichromatic Femtosecond Laser Pulses in Air," in Conference on Lasers and Electro-Optics, (CLEO: Science and Innovations 2021, San Jose, California, United States 9–14 May 2021) J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper JTh3A.92. Posteris
V. Tamulienė, D. Buožius, B. Motiejūnas, V. Vaičaitis, “Kūginė terahercų spinduliuotė žadinama bichromatiniais lazerio impulsais oro plazmoje: kūgio kampo įvertinimas”, 44-oji Lietuvos nacionalinė fizikos konferencija, 2021 m. spalio 6-8 d., Vilnius. Pranešimų medžiaga, p. 100. ISBN 978-609-95511-8-0. (žodinis, V. Tamulienė)
2020
V. Tamuliené, G. Juškevičiūtė, D. Buožius, V. Vaičaitis, I. Babushkin, and U. Morgner, Evolution of the Third-Harmonic X-Waves Generated by Femtosecond Laser Pulses in Air, Nonlinear Photonics 2020, Washington, DC United States, 13–16 July 2020, OSA Technical Digest (Optical Society of America, 2020), paper NpTu4D.1,https://doi.org/10.1364/NP.2020.NpTu4D.1.
2019
V. Vaičaitis, M. Ivanov, I. Thiele, D. Buožius, I. Juchneviciute, S. Skupin, L.Bergé, Generation of broadband THz beams with azimuthally modulated phase and intensity by femtosecond laser pulses in air plasma, International conference “Ultrafast optics XII”, Bol, Croatia, October 6–11, 2019.
M. Ivanov, I. Thiele, L. Bergé, S. Skupin, D. Buožius, and V. Vaičaitis, Vortex terahertz wave generation in air by femtosecond optical vortex pulses, Proc. SPIE 11124, Terahertz Emitters, Receivers, and Applications X, 111240B (6 September 2019); https://doi.org/10.1117/12.2529247
M. Ivanov, I. Thiele, L. Bergé, S. Skupin, D. Buožius, and V. Vaičaitis, Vortex terahertz wave generation in air by femtosecond optical vortex pulses, SPIE Optical Engineering + Applications, 2019, San Diego, California, United States. 6 September 2019 Žodinis pranešimas.
V. Vaičaitis, M. Ivanov, I. Thiele, D. Buožius, I. Juchneviciute, S. Skupin, L.Bergé, Generation of broadband THz beams with azimuthally modulated phase and intensity by femtosecond laser pulses in air plasma, International conference “Ultrafast optics XII”, Bol, Croatia, October 6–11, 2019. Stendinis pranešimas.
M. Ivanov, I. Thiele, L. Bergé, S. Skupin, D. Buožius, V. Vaičaitis, Terahertz Wave Generation in Air by Femtosecond Optical Vortex Pulses, CLEO/EUROPE-EQEC 2019, 23-27 June 2019, Munich, Germany. Žodinis pranešimas.
M. Ivanov, I. Thiele, S. Skupin, D. Buožius, V. Vaičaitis, Terahertz Wave Generation in Air by Femtosecond Optical Vortex Pulses, Optics & Photonics days, Espoo, Finland 27 – 29 May, 2019. Žodinis pranešimas.
Subcycle dynamics of ionization revealed via polarization of lowest harmonics
Babushkin, I, Galan, AJ, Vaicaitis, V, Husakou, A , Morales, F, Demircan, A, Andrade, JRC, Morgner, U, Ivanov, M, 2019 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) MAY 05-10, 2019, San Jose, CA
V. Tamulienė, V. Vaičaitis, Keturbangio maišymo ore indukuoto dviejų spalvų femtosekundiniais lazerio impulsais eksperimentinis ir skaitmeninis tyrimas, 43-oji Lietuvos nacionalinė fizikos konferencija, 2019 m. spalio 3-5 d., Kaunas. Pranešimų medžiaga, p. 176 (Stendinis pranešimas, mano). e-ISBN 978-609-02-1638-5, DOI: http://dx.doi.org/10.5755/e01.9786090216385
Optical attoclock using terahertz radiation, Babushkin, I, Galan, AJ, Vaicaitis, V, Husakou, A , Morales, F, Demircan, A, Andrade, JRC Morgner, U, Ivanov, M, (CLEO/EUROPE-EQEC). MeetingConference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, GERMANY, JUN 23-27, 2019
Project Showcase
Completed projects:
Development of new methods for characterization of plasma induced by femtosecond laser pulses (2019, LMT)
Number: S-MIP-19-46
Head: Virgilijus Vaičaitis (VU, Lithuania)
Duration: 36 months
Funding: 150 kEUR
Funding agency: The Research Council of Lithuania, Researcher Groups projects
Project description:
Calculation of the plasma density in air excited by ultrashort light pulses (2018, LMT)
Number: 09.3.3-LMT-K-712
Head: Viktorija Tamulienė
Duration: 6 months
Funding: 2 839,05 EUR
Funding agency: The Research Council of Lithuania, Researcher Groups projects
Project description:
The aim of the project is to model the propagation of ultrashort light pulses in air, including plasma generation. Calculate the plasma density and show that its value is comparable to the density of air particles. To achieve the goal, a computer program will be studied in detail and improved, which can also be used to solve further tasks. The following tasks will be performed: 1) collected and analyzed scientific literature; 2) familiar with software and program code that simulates light propagation in air, including plasma generation and other non-linear phenomena; 3) simulation performed, plasma density calculated; 4) summarized results compared to experimental data.
Innovative Laser Technologies (LASERLAB‐Europe IV, 7th Framework EU Programme) (2015, LASERLAB)
Duration: 36 months
Funding agency: LASERLAB‐Europe
Project description:
Project "Integrated European Laser Laboratories IV (LASERLAB‐Europe IV, 7th Framework EU Programme). Head of the Joint Research Activities (JRA) "Innovative Laser Technologies" (ILAT) part of Vilnius University (V. Vaičaitis).
IInnovative radiation sources at the extremes (LASERLAB‐Europe III, 7th Framework EU Programme). (2012, LASERLAB)
Duration: 36 months
Funding agency: LASERLAB‐Europe
Project description:
Project "Integrated European Laser Laboratories III (LASERLAB‐Europe III, 7th Framework EU Programme). Head of the Joint Research Activities (JRA) "Innovative radiation sources at the extremes" (INREX) part (V. Vaičaitis).
LaMeTech Science. (2012, EU)
Duration: 36 months
Projektas „LaMeTech Science“, finansuojamas Europos socialinio fondo agentūros. Vilniaus universiteto Kvantinės elektronikos katedros veiklos koordinatorius (V. Vaičaitis).
Nonlinear terahertz photonics technologies: fundamental and applied questions (2012, LMT)
Duration: 2012-2014
Lithuanian Science Council project under the Lithuanian-Belarus cooperation program "Nonlinear terahertz photonics technologies: fundamental and applied questions". Responsible executor (V. Vaičaitis).
TERASPEK (2007, VSF)
Duration: 2007-2009
"TERASPEK" high-tech project of the Lithuanian State Science and Studies Foundation. Head of part of Vilnius University (V. Vaičaitis).
Four-photon parametric generation of tunable frequency light pulses in a resonantly excited gas (2005, VSF)
Duration: 2005-2006
Head of the Lithuanian State Science and Studies Foundation project "Four-photon parametric tunable frequency light pulse generation in resonantly excited gas" (V. Vaičaitis).
Four‐wave parametric light generation of tunable light pulses in resonantly excited gases (2004, NATO)
Number: PST.CLG.980.299
Duration: 2004-2007
Head of the Vilnius University part of the NATO-supported project between Vilnius, Rochester and Maryland universities (PST.CLG.980.299, "Four-wave parametric light generation of tunable light pulses in resonantly excited gases") (V. Vaičaitis).
Partners/International collaboration
The following access projects have been carried out in our laboratory within the framework of the international EU Horizon 2020 research and innovation programme projects Laserlab-Europe V and Lasers4EU:
2024
- “Quantitative detection of Helium content in EUROFER steel and tungsten samples”
Researchers: Dr. Steffen Mittelmann, Dr. Andreas Theodorou (Max-Plank Institute for Plasma Physics, Garching, Germany); in collaboration with local researcher Dr. O. Balachninaitė. - “Femtosecond LIBS and nanosecond LIBS analysis comparison in alloy analysis”
Researchers: Dominik Bruzl, Milan Riha; (Atom Trace Company, Brno Technical University; Czech Republic); in collaboration with local researcher Dr. O. Balachninaitė. - „Customization of biocompatible polymers and Intraocular lenses IOLs by femtosecond Laser Ablation“
Researcher: Dr. Nikolaos Merlemis (University of West Attica, Greece); in collaboration with local researcher Dr. V. Vaičaitis.
2023
- “High repetition rate terahertz pulse generation in air excited by infrared femtosecond laser pulses”
Researcher: Dr. Ihar Babushkin (Leibniz University Hannover, Germany); in collaboration with local researchers Dr. V. Vaičaitis and V. Tamulienė. - “Laser Induced Breakdown Spectroscopy in Nanoparticles Synthesis by Laser Ablation in Liquids”
Researcher: Dr. Nikolaos Semaltianos (Aristotle University Of Thessaloniki, Greece); in collaboration with local researcher Dr. O. Balachninaitė. - „Using LIBS to Differentiate Between Real and Fake Amber“
Researcher: Dr. Ahmed Galmed (Cairo University, Egypt); in collaboration with local researcher Dr. O. Balachninaitė.
2022
- “Milk analysis by LIBS”
Researcher: Dr. Dimitrios Stefas, Eleni Nanou (University Of Patras, Greece); in collaboration with local researcher Dr. O. Balachninaitė.
Resources
| Automated setups of ultrafast lasers synchronized with linear stages and galvo-scanners for spatio-temporal selective light-matter interaction (DLW setup with widely tunable exposure conditions) |
| Femtosecond Yb:KGW and Ti:sapphire laser systems |
| Chemistry laboratory for sample preparation, development, spin-coating and vacuuming |
| Access to and expertise in scanning electron microscopy and optical profilometry inspections |
| Custom optical setup for femtosecond LIBS measurements |
| 8-core processor computer for spatio-temporal numerical simulations |
|
Software "Parametrika" The aim of the program is to calculate the phase-matching condition for optical parametric up- and down- conversion. Bulk and periodically poled crystals are available. 3D and 2D visualisations of the results are presented. There is a possibility to edit the crystal database. Last update: 2024-08-28. Please visit the web site of program Parametrika and download it for your Android or Windows device : http://web.vu.lt/ff/v.pyragaite/index.php?id=Parametrika |