3D nanopolymerization and damage threshold dependence on laser wavelength and pulse duration
| العنوان: | 3D nanopolymerization and damage threshold dependence on laser wavelength and pulse duration |
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| المؤلفون: | Danielius Samsonas, Edvinas Skliutas, Arūnas Čiburys, Lukas Kontenis, Darius Gailevičius, Jonas Berzinš, Donatas Narbutis, Vytautas Jukna, Mikas Vengris, Saulius Juodkazis, Mangirdas Malinauskas |
| المصدر: | Nanophotonics: Special issue on Nanofabrication, Berlin : Walter de Gruyter GmbH, 2023, first on line, p. [1-12] |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Electrical and Electronic Engineering, 3D printing, multi-photon phenomena, non-linear absorption, optical damage threshold, photo-polymerization, ultrashort laser pulses, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Biotechnology |
| الوصف: | The dependence of the polymerization and optical damage thresholds in multi-photon polymerization (MPP) lithography was studied using a broadly-tunable laser system with group delay dispersion (GDD) control. The order of non-linearity and the light–matter interaction mechanisms were investigated using the resolution bridges method for non-photosensitized SZ2080TM and photosensitized SZ2080TM + IRG369 prepolymers. Energy deposition, voxel dimension growth, and the size of the dynamic fabrication window (DFW) were measured in the 700–1300 nm wavelength range at three different pulse durations measured at the sample – 100, 200 and 300 fs. Polymerization was observed at all wavelengths and pulse durations without significant differences in the achieved minimal spatial dimension ( < 300 ${< } 300$ nm). This was achieved despite the broad range of excitation wavelengths used which spanned two- and three-photon absorption bands, and the differences in the absorption spectra of the prepolymers. The lateral and longitudinal voxel growth dynamics revealed an abrupt change in the power dependence of polymerization and a significant variation of the DFW – from 1 at 1250 nm to 29 at 700 nm. This result can be interpreted as a consequence of a change in the instantaneous refractive index and a lowering of the polymerization but not the damage threshold. The optimization of energy delivery to the material by a wavelength-tunable laser source with pulse duration control was experimentally validated. These findings are uncovering the complexity of polymerization mechanisms and are useful in further development of MPP technology. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2192-8606 2192-8614 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4db24b2a5239b18604d9a417204ac75e https://repository.vu.lt/VU:ELABAPDB152456964&prefLang=en_US |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....4db24b2a5239b18604d9a417204ac75e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21928606 21928614 |
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