Three-dimensional nanostructuring of polymer materials by controlled avalanche using femtosecond laser pulses

Rekštytė, Sima; Jonušauskas, Linas; Žukauskas, Andrius; Gervinskas, Gediminas; Malinauskas, Mangirdas; Juodkazis, Saulius

doi:10.1117/12.2040971

Cited by 4 publications

(2 citation statements)

References 52 publications

(57 reference statements)

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“…Those phenomena will be further discussed in later Sections 4 and 5. (Buividas et al, 2013), (Rekštyte et al, 2014a), .…”

Section: Estimation Of Ionization Ratesmentioning

confidence: 99%

Processes of Direct Laser Writing 3D Nano-Lithography

Varapnickas¹,

Malinauskas²

2018

Preprint

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Direct laser writing three-dimensional nano-lithography is an established technique for manufacturing functional 3D micro- and nano-objects via non-linear absorption induced polymerization process. In this Chapter an underlying physical mechanisms taking place during nano-confined polymerization reaction, induced by tightly focused ultra-short laser pulses, are reviewed and discussed. The specialattention is paid on the effects that directly impact structuring resolution and minimum achievable feature size. Analysis of possible photo-initiation mechanisms as contributing multi-photon absorption and avalanche ionization in pre-polymers under diverse exposure conditions (wavelength, pulse duration) is presented. Feasible structuring of pure (non-photosensitized) and functional nanoparticles doped polymer precursors is justified and benefits of such materials/structures for microoptics, photonics and cell scaffolds are highlighted. The influence of temperature effects (induced by writing process itself or determined by ambient conditions) on polymerization process, observed in different pre-polymers under diverse exposure regimes is outlined. The further adjustment of the structuring resolution is possible via precise control of light polarization and diffusion assisted radical quenching. The work is concluded with a brief outlook on future challenges and perspectives related to refinement of 3D ultra-fast laser lithography fabrication process in the means of application of diverse post-processing methods and research into novel photo-curable materials including inorganic ones.

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“…Those phenomena will be further discussed in later Sections 4 and 5. (Buividas et al, 2013), (Rekštyte et al, 2014a), .…”

Section: Estimation Of Ionization Ratesmentioning

confidence: 99%

Processes of Direct Laser Writing 3D Nano-Lithography

Varapnickas¹,

Malinauskas²

2018

Preprint

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“…The material processed using DLW was the nonphotosensitized hybrid organic-inorganic polymer SZ2080. We have chosen this material because of its superb characteristics such as ultra low shrinkage during development [15], transparency [16], biocompatability [17,18], high optical damage threshold [19] and the possibility to structure it without added photoinitiators [20,21] which eliminates their absorption and toxicity from the material. After the fabrication it was developed in 4-methyl-2-pentanone (PEN).…”

Section: Methodsmentioning

confidence: 99%

Custom on demand 3D printing of functional microstructures

Jonušauskas¹,

Skliutas²,

Butkus³

et al. 2015

Lith. J. Phys.

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Rapid development in 3D printing technologies promises a cheap and simple yet reliable way for producing various components and structures for research in numerous science fields. This work is dedicated to investigate the possibility to use fused filament fabrication based 3D printing to fabricate microchannels for microfluidical applications as well as diverse 3D scaffolds for biomedical applications. We also examine the possibility to further improve fabricated structures by employing an ultrafast laser, namely by laser light filamentation and using direct laser writing. Results of this study are discussed in detail and outlook for further work in this field is given.

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Processes of Laser Direct Writing 3D Nanolithography

Varapnickas¹,

Malinauskas²

2021

Handbook of Laser Micro- And Nano-Engineering

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Three-dimensional nanostructuring of polymer materials by controlled avalanche using femtosecond laser pulses

Cited by 4 publications

References 52 publications

Processes of Direct Laser Writing 3D Nano-Lithography

Processes of Direct Laser Writing 3D Nano-Lithography

Custom on demand 3D printing of functional microstructures

Processes of Laser Direct Writing 3D Nanolithography

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