Two-photon polymerization of an Eosin Y-sensitized acrylate composite

Farsari, Maria; Filippidis, George; Sambani, Kyriaki; Drakakis, Theodore S.; Fotakis, C.

doi:10.1016/j.jphotochem.2005.11.025

Cited by 55 publications

(37 citation statements)

References 20 publications

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“…Our photopolymerizable system is sensitive in the 400-550 nm spectral region (where the two-photon absorption window for the material lies), while absorption at 800 nm is negligible. [20] This result shows that MPA is responsible for the fabrication of the periodic structures using the amplified femtosecond pulses. Similar results were obtained in the past for other photopolymerizable materials such as SU-8.…”

Section: Resultsmentioning

confidence: 79%

Fabrication of Periodic Microstructures in Pentaerythritol Triacrylate Through Femtosecond Laser Interference Two‐Photon Polymerization

et al. 2009

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Section: Resultsmentioning

confidence: 79%

Fabrication of Periodic Microstructures in Pentaerythritol Triacrylate Through Femtosecond Laser Interference Two‐Photon Polymerization

et al. 2009

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“…Eosin absorbs light, excites into triplet state and oxidizes co-initiator which creates free radicals. Free radicals trigger polymerization and the monomer develops into three-dimensional network [19]. Above reaction depends on optical energy absorption from light in the range of 450-550 nm.…”

Section: Materials and Experimentsmentioning

confidence: 99%

Polymer Microtips Fabricated at the Extremity of Photonic Crystal Fibers

Pura¹,

Szymanski²,

Wiśniowski³

et al. 2013

JMSE-B

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Abstract:In this paper, a simple method of manufacturing micrometer-sized polymer elements (microtips) at the extremities of the photonic crystal fibers (PCFs), which are replacing standard optical fibers in many applications due to their unique properties, is presented. The method of microtips fabrication is based on the phenomena of photopolymerization, which is successfully used by the first time, to be best of our knowledge, to manufacture microtip at PCF. The three component photopolymerizable formulation consists of photo-initiating system and multifunctional triacrylate. The photopolymerization is carried out by green laser with the microtip growth controlled by the light exposure parameters (i.e. power and time). Results of microtip fabrication on standard fiber (SMF-28e+) and large mode area PCF (LMA-10) are provided. Theinfluence of the initial process parameters on the final microtip characteristics (i.e., length, diameter and profile) is discussed. The potential applications of such polymer microtips are near-field scanning optical microscopy, coupling light sources with fibers and sensing.

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“…This allows easy control of threshold energy for polymerization in the TPS [36]. Also, Farsari et al [39] showed the possibility of TPA at a wavelength of 1028 nm (operating wavelength of fs laser) for a TPA dye with one-photon activity between 450-550 nm. Furthermore, three-photon polymerization was demonstrated for the first time by the same research team to open the road for achieving higher resolution; however, the highest resolution, reaching 500 nm, was achieved by the three-photon polymerization [40].…”

Section: Mechanism Of Two-photon Polymerizationmentioning

confidence: 99%

Two‐photon stereolithography for realizing ultraprecise three‐dimensional nano/microdevices

Park

Yang

Lee³

2009

Laser & Photonics Reviews

209

104

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Two-photon stereolithography (TPS) provides many advantages for achieving two-dimensional (2D) and threedimensional (3D) micrometer-scale polymeric, ceramic and metallic structures applicable to complicated optical and neoelectronic microdevices. In the fabrication of high-resolution 3D microstructures, TPS has significant advantages over conventional microelectromechanical system (MEMS) processing, which involves time-consuming multistep indirect fabrication processes. Many studies have recently been made to develop and improve the TPS process, focusing on creating greater efficiency, higher resolution, and greater productivity, which are essential requirements of a practical TPS process. For the first time, an artistic microstructure has recently been successfully produced with an ultraprecise spatial resolution, sub-30 nm nanofibers, 3D multilayer imprint stamps for mass production, and ceramic 3D microstructures. In this review, we report the progress of twophoton polymerization based on 3D microfabrication, including the results obtained from the original research. This report is presented in three sections: improvement of resolution, precise design schemes, and applications of 3D microstructures.Precise micro 3D pattern fabricated by two-photon lithography.

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Two-photon polymerization of an Eosin Y-sensitized acrylate composite

Cited by 55 publications

References 20 publications

Fabrication of Periodic Microstructures in Pentaerythritol Triacrylate Through Femtosecond Laser Interference Two‐Photon Polymerization

Fabrication of Periodic Microstructures in Pentaerythritol Triacrylate Through Femtosecond Laser Interference Two‐Photon Polymerization

Polymer Microtips Fabricated at the Extremity of Photonic Crystal Fibers

Two‐photon stereolithography for realizing ultraprecise three‐dimensional nano/microdevices

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