Expansion of direct laser writing capabilities for usage in biomedical applications

Jonušauskas, Linas; Andrijec, Dovilė; Andriukaitis, Deividas; Vargalis, Rokas; Baravykas, Tomas; Stankevičius, Arūnas; Merkininkaitė, Greta; Pautienius, Arnoldas; Gricius, Henrikas; Ezerskyte, Egle; Šimkutė, Evelina; Butkutė, Agnė; Grigas, Juozas; Šakirzanovas, Simas

doi:10.1117/12.2579245

Cited by 4 publications

(3 citation statements)

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“…[ 38 ] The main light source in this setup was a femtosecond laser “Carbide” (Light Conversion), outputting either fundamental (1030 nm) or second‐harmonic (515 nm) radiation at repetition rates in the range of 60–1000 kHz and pulse duration between 250 fs and 10 ps. [ 39 ] In this work, gyroids and fullerene‐type model fabrication were carried out using 515 nm wavelength radiation, at repetition rates 200 kHz and pulse duration ≈300 fs, focused by an objective lens with 20 x 0.8 NA (Zeiss) using 1.0 mW incident irradiation power and 10 mm s −1 speed. [ 40 ] Figure S4, Supporting Information, shows the resolution test of MTMS:MAPTMS 8:2 material using different parameters (see Supporting Information).…”

Section: Methodsmentioning

confidence: 99%

Additive Manufacturing of SiOC, SiC, and Si₃N₄ Ceramic 3D Microstructures

et al. 2023

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Herein, the fabrication of hard ceramic SiOC 3D microstructures by precursor synthesis, laser lithography, and pyrolysis combination is proposed. Precursors are hybrid organosilicon materials prepared via sol–gel method using trimethoxymethylsilane and 3‐(trimethoxysilyl)propyl methacrylate, which has an acrylate functional group enabling laser photopolymerization process. Hard 3D ceramic structures (hardness up to ≈15 GPa, reduced elastic modulus ≈105 GPa) from soft organometallic derivatives are obtained after high‐temperature pyrolysis under nitrogen atmosphere. The advantage of the proposed method is the absence of shrinkage defects leading to a uniform repetitive decrease in the volume of printed microstructures. In contrast to slurry‐based printing technology, the proposed method is focused on homogeneous monolithic molecular resins resulting in visual smooth surfaces of prepared microstructures. Moreover, the printing resolution of the proposed method is substantially improved through the absence of predispersed ceramic microparticles in mixtures, which is a necessary element in a slurry‐based technology.

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Section: Methodsmentioning

confidence: 99%

Additive Manufacturing of SiOC, SiC, and Si₃N₄ Ceramic 3D Microstructures

et al. 2023

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“…It is feasible to create tiny grating constants in hundreds of nanometers or fewer using modern X-ray photolithography (XRL) [ 108 ], electron beam lithography (EBL) [ 109 ], a focused ion beam (FIB), or nanoimprinting lithography (NIL) [ 110 ]. During the last few decades, DLW based on femtosecond (fs) pulse-induced light–matter interaction has grown significantly [ 111 , 112 ]. The ability to leverage numerous nonlinear light–matter interaction regimes as well as manage the thermal component of the process are fundamental benefits of employing fs lasers for DLW.…”

Section: Bg Structures Based On a Polymer Platformmentioning

confidence: 99%

Advances in Waveguide Bragg Grating Structures, Platforms, and Applications: An Up-to-Date Appraisal

2022

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A Bragg grating (BG) is a one-dimensional optical device that may reflect a specific wavelength of light while transmitting all others. It is created by the periodic fluctuation of the refractive index in the waveguide (WG). The reflectivity of a BG is specified by the index modulation profile. A Bragg grating is a flexible optical filter that has found broad use in several scientific and industrial domains due to its straightforward construction and distinctive filtering capacity. WG BGs are also widely utilized in sensing applications due to their easy integration and high sensitivity. Sensors that utilize optical signals for sensing have several benefits over conventional sensors that use electric signals to achieve detection, including being lighter, having a strong ability to resist electromagnetic interference, consuming less power, operating over a wider frequency range, performing consistently, operating at a high speed, and experiencing less loss and crosstalk. WG BGs are simple to include in chips and are compatible with complementary metal-oxide-semiconductor (CMOS) manufacturing processes. In this review, WG BG structures based on three major optical platforms including semiconductors, polymers, and plasmonics are discussed for filtering and sensing applications. Based on the desired application and available fabrication facilities, the optical platform is selected, which mainly regulates the device performance and footprint.

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“…The photosensitive nature of these resins, allow for micro/nano fabrication techniques as UV-lithography 17 , direct laser writing 18 , e-beam 19 , ink-jet 20 and UV-nanoimprint 21 . The dyes employed in this work cover the visible range of the spectrum, targeting future applications such as integrated lasers, biosensors, and optical communications.…”

Section: Introductionmentioning

confidence: 99%

Identification of Dye And Matrix For Dye Doped Polymer Waveguide Emitters Covering The Visible Spectrum

Paz

Caño‐García

Geday

et al. 2022

Preprint

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Polymer based photonic devices offer the possibility cost effective roll-to-roll manufacture of photonic devices. The incorporation of luminescent dopants within a solid polymer waveguide allows for the generation of light within the device avoiding tedious mechanical light coupling. However, when a dopant is embedded in a solid matrix, depending on its concentration and the nature of materials involved, the emitted light may be quenched due to aggregation effects. In this work, thin films and ridge waveguides processed by UV-photolithography have been successfully obtained from a selection of standard photopolymerizable organic monomers, SU8, EpoCore and OrmoStamp doped with a selection of standard dyes like Rhodamine-B, Coumarin-540A and Pyrromethene-580. All structures were manufactured onto glass substrates. An analysis of the solubility and optical properties including band gap energy and absorption coefficient (í µí»¼) of the doped photoresists at different concentrations has been performed. Photoresists doped with Rhodamine-B shows a higher energy of indirect allowed band gap transition (2.04-2.09 eV) compared to previously reported Rhodamine-B thin films (1.95-1.98 eV). Fabrication protocols of dye doped photoresists covering the entire visible spectrum is established.

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Expansion of direct laser writing capabilities for usage in biomedical applications

Cited by 4 publications

References 0 publications

Additive Manufacturing of SiOC, SiC, and Si₃N₄ Ceramic 3D Microstructures

Additive Manufacturing of SiOC, SiC, and Si₃N₄ Ceramic 3D Microstructures

Advances in Waveguide Bragg Grating Structures, Platforms, and Applications: An Up-to-Date Appraisal

Identification of Dye And Matrix For Dye Doped Polymer Waveguide Emitters Covering The Visible Spectrum

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Expansion of direct laser writing capabilities for usage in biomedical applications

Cited by 4 publications

References 0 publications

Additive Manufacturing of SiOC, SiC, and Si3N4 Ceramic 3D Microstructures

Additive Manufacturing of SiOC, SiC, and Si3N4 Ceramic 3D Microstructures

Advances in Waveguide Bragg Grating Structures, Platforms, and Applications: An Up-to-Date Appraisal

Identification of Dye And Matrix For Dye Doped Polymer Waveguide Emitters Covering The Visible Spectrum

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Additive Manufacturing of SiOC, SiC, and Si₃N₄ Ceramic 3D Microstructures

Additive Manufacturing of SiOC, SiC, and Si₃N₄ Ceramic 3D Microstructures