Ms. Greta Merkininkaite Profile

Greta Merkininkaite

at Femtika UAB

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Author

Publications (7)

Proceedings Article | 1 April 2022 Presentation

Selective laser etching of high aspect ratio 3D glass microstructures

Agnė Butkutė, Greta Merkininkaitė, Tomas Baravykas, Tomas Jurkšas, Jokūbas Stančikas, Titas Tičkūnas, Linas Jonušauskas, Valdas Sirutkaitis

Proceedings Volume PC11992, PC119920D (2022) https://doi.org/10.1117/12.2609758

KEYWORDS: Etching, Glasses, 3D microstructuring, Microfluidics, Surface roughness, Optical components, Biomedical optics, Wet etching, Visible radiation, Solids

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Proceedings Article | 5 March 2022 Presentation

Calcination: the enabler of next-gen additive inorganic 3D structuring

Darius Gailevicius, Greta Merkininkaite, Simas Sakirzanovas, Mangirdas Malinauskas

Proceedings Volume PC12012, PC120120T (2022) https://doi.org/10.1117/12.2608928

KEYWORDS: Metals, Lithography, Heat treatments, Glasses, Crystals, Tunable lasers, Transparency, Remote sensing, Refractive index, Photonics

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Proceedings Article | 8 March 2021 Presentation + Paper

Expansion of direct laser writing (DLW) capabilities for usage in biomedical applications

Linas Jonušauskas, Dovile Andrijec, Deividas Andriukaitis, Rokas Vargalis, Tomas Baravykas, Arūnas Stankevičius, Greta Merkininkaite, Arnoldas Pautienius, Henrikas Gricius, Egle Ežerskyte, Evelina Šimkutė, Agne Butkute, Juozas Grigas, Simas Šakirzanovas

Proceedings Volume 11677, 1167713 (2021) https://doi.org/10.1117/12.2579245

KEYWORDS: Multiphoton lithography, Medicine, Additive manufacturing, 3D applications, Standards development, Printing, Point-of-care devices, Nanolithography, Macromolecules, Femtosecond phenomena

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Proceedings Article | 5 March 2021 Presentation

Glassy free-form 3D micro-optics enabled via ultrafast laser 3D nanolithography

Simonas Varapnickas, Meguya Ryu, Darius Gailevicius, Tai Suzuki, Greta Merkininkaite, Simas Sakirzanovas, Junko Morikawa, Saulius Juodkazis, Mangirdas Malinauskas

Proceedings Volume 11696, 1169610 (2021) https://doi.org/10.1117/12.2578469

KEYWORDS: Ultrafast lasers, Nanolithography, Micro optics, Glasses, Transparency, Refractive index, Prisms, Polymers, Photorefractive polymers, Lenses

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Proceedings Article | 5 March 2021 Presentation + Paper

Femtosecond surface structuring: wettability, friction control and surface chemistry

Gedvinas Nemickas, Deividas Čereška, Gabrielius Kontenis, Arnas Žemaitis, Greta Merkininkaite, Simas Šakirzanovas, Linas Jonušauskas

Proceedings Volume 11674, 116740Q (2021) https://doi.org/10.1117/12.2578355

KEYWORDS: Ultrafast lasers, Nanostructuring, Femtosecond phenomena, Ultrafast phenomena, Surface properties, Pulsed laser operation, Polarization, Medicine, Manufacturing, Light-matter interactions

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Proceedings Article | 31 March 2020 Presentation

Preparation of 3D glass ceramic micro-/nanostructures by combining laser nanolithography with calcination (Conference Presentation)

Greta Merkininkaitė, Edvinas Aleksandravičius, Darius Gailevicius, Simonas Varapnickas, Mangirdas Malinauskas, Simas Šakirzanovas

Proceedings Volume 11349, 113490E (2020) https://doi.org/10.1117/12.2555838

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Ceramics play an important role in today’s science and industry as it can withstand immense thermal, mechanical, chemical and other hazards. In recent years, the interest in 3D printing micro- or even nano-structures out of ceramics has been growing rapidly. Therefore, direct laser writing by two photon polymerization together with calcination have been proved to be a powerful tool for the fabrication of fully 3D glass-ceramic objects in micro- and nano-scale [1]. However, producing such structures with unique properties at meso scale (features from nm to cm overall size) is one of the greatest challenges [2]. In order to overcome it the composition of the starting materials and as well as conditions of calcination have to be fully understood and enhanced. We synthesized a series of organic-inorganic polymer precursors via sol-gel method varying the molar ratio of silicon (Si) and zirconium (Zr) complexes (Si:Zr, where Si=9; 8; 7; 6; 5 and Zr=1; 2; 3; 4; 5) [3] and investigated 3D processing of these materials. The study shows that the “glassy” phase structures retain their shape without any distortion. Furthermore, calcination provides a route for the continuous size control and formation of a variety of phase transformation for free-form nano-/micro-objects. It is shown that due to the isotropic nature of the shrinkage during calcination fabricated 3D objects retain complex geometry. Nano-woodpiles, bulk-woodpile hybrids and full bulk structures are formed. The sizes of single features in these objects vary from 120 nm to 800 nm with overall size going to 30 µm. Finally, changes in focused ion beam machining rates between standard and calcinated materials are shown proving enhanced resiliency of the final product (up to 50%). [1] Gailevičius, D., et al., Additive-manufacturing of 3D glass-ceramics down to nanoscale resolution. Nanoscale Horiz.; 4, 647-651; (2019) [2] L. Jonusauskas, D. Gailevicius, S. Rekstyte, T. Baldacchini, S. Juodkazis, M. Malinauskas, Mesoscale Laser 3D Printing, Opt. Express 27 (11), 15205-15221 (2019) [3] Ovsianikov, A., et al., Ultra-Low Shrinkage Hybrid Photosensitive Material for Two-Photon Polymerization Microfabrication. ACS Nano; 2(11), 2257-2262; (2008)

Proceedings Article | 18 October 2019 Presentation

Nanoscale 3D laser additive manufacturing of highly resilient glass ceramics (Conference Presentation)

Darius Gailevičius, Greta Merkininkaite, Viktorija Padolskyte, Simonas Varapnickas, Meguya Ryu, Junko Morikawa, Vygantas Mizeikis, Simas Sakirzanovas, Saulius Juodkazis, Mangirdas Malinauskas

Proceedings Volume 11168, 111680F (2019) https://doi.org/10.1117/12.2532804

KEYWORDS: Lithography, Ultrafast lasers, Additive manufacturing, Spatial resolution, Optical properties, Thermography, Optical sensors, Environmental sensing

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