Laser-assisted morphing of complex three dimensional objects

Drs, Jakub; Kishi, Takuya; Bellouard, Yves

doi:10.1364/oe.23.017355

Cited by 29 publications

(20 citation statements)

References 33 publications

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“…[44,45] Then, controllable sealing of those ports has been achieved using CO 2 laser irradiation in a defocusing manner for all-glass structure manufacturing. [46][47][48] Moreover, 3D laser subtractive glass printing enables rapid manufacturing of macroscale glass objects with desirable shapes and a high precision down to several tens of micrometers due to unique polarization-insensitive and depth-insensitive processing characteristics of picosecond laser irradiation. [34,49] The proposed approach allows monolithic fabrication of 3D freeform encapsulated microchannels and 3D printable glass structures with arbitrary lengths and flexible configurations on a glass substrate, paving the way for advanced manufacturing of 3D largescale all-glass microfluidic systems.…”

Section: Introductionmentioning

confidence: 99%

Freeform Microfluidic Networks Encapsulated in Laser‐Printed 3D Macroscale Glass Objects

Lin

Song

et al. 2020

Adv Materials Technologies

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and fine chemical industries. [1][2][3][4][5][6] As a core element of microfluidic technology, high-performance fabrication of hollow microchannels with freeform geometries is crucial for further developing innovative microfluidic technology. In particular, extension of the microfluidic networks from widely used 2D to 3D configurations has now been considered as a promising scheme to enhance the performance of manipulation of fluids such as high-efficiency mixing, separation, and detection. [7][8][9][10][11] Fused silica is one of the widely used substrates for the microfluidic technology in laboratory research and industrial applications due to its high melting point, high chemical stability, low thermal expansion coefficient, wide transmission spectral range, and good biocompatibility. However, fabrication of freeform 3D hollow microchannels in fused silica is still difficult for current 2D fabrication techniques in terms of complex and tedious fabrication procedures, additional costs for aligning, stacking, and bonding steps. [12][13][14] Currently, one of the most representative 3D microfabrication techniques of fused silica is ultrashort pulse laser microfabrication. [15][16][17][18][19][20] A suspended hollow microchannel structure with a 3D controllable configuration can be fabricated in a way of either laser-assisted selective wet etching [21][22][23] or liquid-assisted laser ablation. [24][25][26] In addition, suspended hollow structures with 3D shapes and a high precision in fused silica can be fabricated by combining room-temperature casting and sacrificial template replication. [27] Meanwhile, 3D printing of glass materials emerging in recent years brings some new opportunities for scalable fabrication of freeform glass structures by either additive manufacturing strategies [28][29][30][31][32][33] or laser subtractive processing methods. [34][35][36] However, controllable formation of freeform hollow microchannel with arbitrary length encapsulated in 3D printed glass structures has not yet been demonstrated, which is highly desirable for high-infidelity manufacturing of artificial organs, on-chip construction of biomimetic microenvironments, [37][38][39][40][41] as well as enrichment of the functions of continuous-flow microreactors (e.g., seamless integration of customized functional module for temperature control and on-line spectrometer monitoring). [42,43] Especially, simultaneous fabrication of 3D embedded hollow microchannels with high aspect ratios and centimeter-scale glass objects with external arbitrary shapes on/in a single substrate still Large-scale microfluidic microsystems with complex 3D configurations are highly in demand by both fundamental research and industrial application, holding the potentials for fostering a wide range of innovative applications such as organ-on-a-chip as well as continuous-flow manufacturing. However, freeform fabrication of such systems remains challenging for current fabrication techniques in terms of fabrication resolution, flexibility, and achievable foo...

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Section: Introductionmentioning

confidence: 99%

Freeform Microfluidic Networks Encapsulated in Laser‐Printed 3D Macroscale Glass Objects

Lin

Song

et al. 2020

Adv Materials Technologies

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“…Due to its inherent properties, the surface roughness on fused silica is on the order of hundreds of nanometers. Recently, there have been efforts to introduce CO 2 laser processing to the femtosecond laser micromachined surfaces to reflow the glass material and create new shapes [2,3]. Here we report surface roughness improvement of fused silica surfaces using low-power CO 2 treatment.…”

Section: Introductionmentioning

confidence: 83%

CO2 polishing of femtosecond laser micromachined microfluidic channels

Serhatlıoğlu

Ortaç

Elbüken

et al. 2016

Conference on Lasers and Electro-Optics

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“…Ablation using ultra-short sub-1 ps laser pulses has become a popular method for three-dimensional (3D) material structuring: cutting, dicing, hole-drilling, surface-and volume-patterning with nanogratings [1][2][3][4], optical waveguide inscription in glasses and crystals [5], non-erasable optical memory and photonic crystals [6], creation of new materials and their high pressure and temperature phases by 3D confined micro-explosions [7], thermal morphing of laser fabricated 3D structures [8], laser-assisted etching [9], and light-induced back-side wet-etching [10]. Applications of colloidal nanoparticle synthesis by ablation in liquids [11] and laser-machining have become industrial applications with high throughput [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Ablation in Externally Applied Electric and Magnetic Fields

Maksimovic

Katkus

et al. 2020

Nanomaterials

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To harness light-matter interactions at the nano-/micro-scale, better tools for control must be developed. Here, it is shown that by applying an external electric and/or magnetic field, ablation of Si and glass under ultra-short (sub-1 ps) laser pulse irradiation can be controlled via the Lorentz force F = e E + e [ v × B ] , where v is velocity of charge e, E is the applied electrical bias and B is the magnetic flux density. The external electric E-field was applied during laser ablation using suspended micro-electrodes above a glass substrate with an air gap for the incident laser beam. The counter-facing Al-electrodes on Si surface were used to study debris formation patterns on Si. Debris was deposited preferentially towards the negative electrode in the case of glass and Si ablation. Also, an external magnetic field was applied during laser ablation of Si in different geometries and is shown to affect ripple formation. Chemical analysis of ablated areas with and without a magnetic field showed strong chemical differences, revealed by synchrotron near-edge X-ray absorption fine structure (NEXAFS) measurements. Harnessing the vectorial nature of the Lorentz force widens application potential of surface modifications and debris formation in external E-/B-fields, with potential applications in mass and charge spectroscopes.

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Laser-assisted morphing of complex three dimensional objects

Cited by 29 publications

References 33 publications

Freeform Microfluidic Networks Encapsulated in Laser‐Printed 3D Macroscale Glass Objects

Freeform Microfluidic Networks Encapsulated in Laser‐Printed 3D Macroscale Glass Objects

CO2 polishing of femtosecond laser micromachined microfluidic channels

Ablation in Externally Applied Electric and Magnetic Fields

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