Submicrometer 3D structures fabrication enabled by one-photon absorption direct laser writing

Trang, Mai; Nguyen, Thi Thanh Ngan; Li, Qinggele; Bénisty, Henri; Ledoux‐Rak, Isabelle; Lai, Ngoc Diep

doi:10.1364/oe.21.020964

Cited by 98 publications

(77 citation statements)

References 20 publications

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“…It has been demonstrated, by analyzing fluorescence emission, that the SU8 photoresist linearly absorbs the excitation laser at 532 nm-wavelength [17]. For the LOPA CLSM, the intensity at the focusing region (of the order of 10 7 W/cm 2 ) is much higher than that at the input of the optical system (10 −2 W/cm 2 ), allowing the excitation and fluorescence detection of the focal spot volume only.…”

Section: Verification Of Lopa-based Fabricationmentioning

confidence: 99%

“…been demonstrated [16,17], allowing one to combine the advantages of both OPA and TPA methods. Indeed, the LOPA method employs a simple, CW and low power laser, as in the case of conventional OPA, but it allows the optical addressing of 3D objects, as what could be realized by the TPA method, by using a combination of an ultralow absorption effect and a tightly focusing spot.…”

Section: Introductionmentioning

confidence: 99%

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One-Photon Absorption-Based Direct Laser Writing of Three- Dimensional Photonic Crystals

Nguyen¹,

Trang²,

Li³

et al. 2018

Theoretical Foundations and Application of Photonic Crystals

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A simple and low-cost technique called low one-photon absorption (LOPA) direct laser writing (DLW) is demonstrated as an efficient method for structuration of multidimensional submicrostructures. Starting from the diffraction theory of the electromagnetic field distribution of a tightly focused beam, the crucial conditions for LOPA-based DLW are theoretically investigated, and then experimentally demonstrated using a simple optical confocal microscope. Various 1D, 2D, and 3D submicrostructures were successfully fabricated in different materials, such as commercial SU8 photoresist and magnetic nanocomposite. The advantages and drawbacks of this LOPA-based DLW technique were also studied and compared with the conventional two-photon absorption based DLW. Several methods were proposed to overcome the existing problem of the DLW, such as the dose accumulation and shrinkage effect, resulting in uniform structures with a small lattice constant. The LOPA-based DLW technique should be useful for the fabrication of functionalized structures, such as magneto-photonic and plasmon photonic crystals and devices, which could be interesting for numerous applications.

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Section: Verification Of Lopa-based Fabricationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

One-Photon Absorption-Based Direct Laser Writing of Three- Dimensional Photonic Crystals

Nguyen¹,

Trang²,

Li³

et al. 2018

Theoretical Foundations and Application of Photonic Crystals

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“…The DLW method mainly uses an ultrafast laser (femtosecond, fs or picosecond, ps lasers) [7] but recently continuous wave (cw) lasers are also used for specific materials [8]. The laser …”

Section: Direct Laser Writingmentioning

confidence: 99%

Direct Laser Writing of Supercapacitors

Thekkekara¹

2018

Supercapacitors - Theoretical and Practical Solutions

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Direct laser writing is a single-step fabrication technique for the micro and nanostructures even below the sub-diffraction limits. In recent times, the technique is adapted to the fabrication of on-chip energy storages with additional features of flexibility and stretchability. The major category of the energy storages taken into consideration for laser writing belongs to the family of supercapacitors which is known for the high rate of charge transfer, longer life spans and lesser charging times in comparison with traditional batteries. The technology explores the possibilities of non-explosive all solid-state energy storage integration with portable and wearable applications. These features can enable the development of self-powered autonomous devices, vehicles and self-reliant infrastructures. In this chapter, we discuss the progress, challenges and perspectives of micro-supercapacitors fabricated using direct laser writing.

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“…This interaction has enabled the construction of a 3D biomimetic structure with high-resolution (from lm to nm) that could not have been obtained by traditional photolithography. 42 However, multi-photon polymerization requires the laser beam to pass through the entire photo-curable material without attenuation, which limits its application to only transparent materials, such as SU-8, 41 ORMOCERÒ, 42,43 ORMOCOMPÒ, 44 ORMOSILÒ, 45,46 zirconium based organic-inorganic hybrid material (SZ2080), [47][48][49] IP-L780 50 and biocompatible hydrogels. 51 With customsynthesized hybrid materials, 3D scaffolds can be fabricated with tunable geometries (e.g., porosity, pore size etc.)…”

Section: D Structure Fabrication Using Multi-photon Polymerizationmentioning

confidence: 99%

Laser-assisted biofabrication in tissue engineering and regenerative medicine

et al. 2016

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Controlling the spatial arrangement of biomaterials and living cells provides the foundation for fabricating complex biological systems. Such level of spatial resolution (less than 10 lm) is difficult to be obtained through conventional cell processing techniques, which lack the precision, reproducibility, automation, and speed required for the rapid fabrication of engineered tissue constructs. Recently, laserassisted biofabrication techniques are being intensively developed with the use of computer-aided processes for patterning and assembling both living and nonliving materials with prescribed 2D or 3D organization. In this review, we discuss laser-assisted fabrication methods, including laser tweezers, multi-photon polymerization, laser-induced forward transfer (LIFT), matrix assisted pulsed laser evaporation (MAPLE), and laser ablation as well as their applications in biological science and biomedical engineering. These advanced technologies enable the precise manipulation of in vitro cellular microenvironments and the ability to engineer functional tissue constructs with high complexity and heterogeneity, which serve in regenerative medicine, pharmacology, and basic cell biology studies.

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Submicrometer 3D structures fabrication enabled by one-photon absorption direct laser writing

Cited by 98 publications

References 20 publications

One-Photon Absorption-Based Direct Laser Writing of Three- Dimensional Photonic Crystals

One-Photon Absorption-Based Direct Laser Writing of Three- Dimensional Photonic Crystals

Direct Laser Writing of Supercapacitors

Laser-assisted biofabrication in tissue engineering and regenerative medicine

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