Mr. Orestas Ulčinas Profile

Orestas Ulčinas

at Ctr. for Physical Sciences and Technology

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Author

Publications (9)

Proceedings Article | 17 March 2023 Presentation

Beam shaping of high-energy beams for laser micromachining of transparent materials

Vytautas Jukna, Ernestas Nacius, Orestas Ulcinas, Sergejus Orlovas

Proceedings Volume PC12411, PC124110K (2023) https://doi.org/10.1117/12.2657417

KEYWORDS: Micromachining, Beam shaping, Spatial light modulators, Phase shift keying, Nondiffracting beams, Modulation, Microfluidics, Laser welding, Laser damage threshold, Gaussian beams

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Proceedings Article | 4 March 2022 Presentation + Paper

Focal beam zone engineering for enhanced transparent material laser micro-welding process

Ernestas Nacius, Orestas Ulčinas, Sergej Orlov, Vytautas Jukna

Proceedings Volume 11989, 1198904 (2022) https://doi.org/10.1117/12.2610170

KEYWORDS: Beam shaping, Glasses, Polarization, Wave plates, Optical components, Optics manufacturing, Gaussian beams, Pulsed laser operation, Polarizers

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Proceedings Article | 5 March 2021 Presentation + Paper

Inscription in the glass of efficient Gauss to top-hat converters based on Pancharatnam-Berry phase by high power femtosecond laser pulses

Pavel Gotovski, Paulius Šlevas, Sergej Orlov, Orestas Ulčinas, Antanas Urbas

Proceedings Volume 11673, 116730H (2021) https://doi.org/10.1117/12.2578318

KEYWORDS: Glasses, Femtosecond phenomena, High power lasers, Optical components, Beam shaping, Ultraviolet radiation, UV optics, Terahertz radiation, Polarization control, Polarization

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Proceedings Article | 5 March 2021 Poster + Presentation + Paper

Thin glass processing using Bessel-type beams generated with spatially phase-shifted axicons

Ernestas Nacius, Pavel Gotovski, Benas Stanionis, Orestas Ulčinas, Sergej Orlov, Vytautas Jukna

Proceedings Volume 11674, 116741K (2021) https://doi.org/10.1117/12.2577295

KEYWORDS: Axicons, Glass processing, Optical components, Materials processing, Glasses, Diffractive optical elements, Photonics, Phase shifts, Optics manufacturing

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Proceedings Article | 2 March 2020 Paper

Formation of optical needles by Pancharatnam-Berry phase element for laser-induced modifications in transparent materials

P. Gotovski, P. Šlevas, E. Nacius, V. Jukna, S. Orlov, J. Baltrukonis, O. Ulčinas, T. Gertus

Proceedings Volume 11268, 112681Y (2020) https://doi.org/10.1117/12.2544925

KEYWORDS: Bessel beams, Axicons, Optical components, Gaussian beams, Modulation, Phase shift keying, CCD cameras, Apodization, Polarization, Amplitude modulation

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Proceedings Article | 2 March 2020 Paper

Design of efficient Gauss to top-hat converters using geometrical phase elements inscribed in the glass by femtosecond laser pulses

P. Gotovski, P. Šlevas, E. Nacius, V. Jukna, S. Orlov, O. Ulcinas, J. Baltrukonis, T. Gertus

Proceedings Volume 11266, 112661J (2020) https://doi.org/10.1117/12.2546620

KEYWORDS: Gaussian beams, Optical components, Polarization, Glasses, Femtosecond phenomena, Photonics, Modulation, Seaborgium, Manufacturing, Wave plates

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Proceedings Article | 2 March 2020 Paper

Laser induced modifications in transparent materials using azimuthally modulated axicon beams

Paulius Slevas, Sergej Orlov, Ernestas Nacius, Orestas Ulcinas, Pavel Gotovski, Justas Baltrukonis, Vytautas Jukna

Proceedings Volume 11267, 112670B (2020) https://doi.org/10.1117/12.2546580

KEYWORDS: Bessel beams, Picosecond phenomena, Modulation, Axicons, Glasses, Nondiffracting beams, Superposition, Phase shift keying, Microfabrication, Silica

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Proceedings Article | 2 March 2020 Paper

Generation of Bessel type beams via phase shifted axicons encoded in geometrical phase elements

Ernestas Nacius, Pavel Gotovski, Vytautas Jukna, Orestas Ulčinas, Titas Gertus, Sergej Orlov

Proceedings Volume 11266, 112660Z (2020) https://doi.org/10.1117/12.2546561

KEYWORDS: Axicons, Phase shifts, Phase shift keying, Bessel beams, Spatial light modulators, Optical components, Beam shaping, Numerical simulations, Micromachining, Beam propagation method

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Proceedings Article | 2 March 2020 Paper

Realization of higher order vector Bessel beams for transparent material processing applications

Justas Baltrukonis, Orestas Ulcinas, Pavel Gotovski, Sergej Orlov, Vytautas Jukna

Proceedings Volume 11268, 112681D (2020) https://doi.org/10.1117/12.2545093

KEYWORDS: Bessel beams, Polarization, Axicons, Glasses, Modulation, Polarizers, Optical components, Beam shaping, Spatial filters, Materials processing

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Showing 5 of 9 publications

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