Freeform Fabrication of Magnetophotonic Crystals with Diamond Lattices of Oxide and Metallic Glasses for Terahertz Wave Control by Micro Patterning Stereolithography and Low Temperature Sintering

Abstract

Abstract:Micrometer order magnetophotonic crystals with periodic arranged metallic glass and oxide glass composite materials were fabricated by stereolithographic method to reflect electromagnetic waves in terahertz frequency ranges through Bragg diffraction. In the fabrication process, the photo sensitive acrylic resin paste mixed with micrometer sized metallic glass of Fe 72 B 14.4 Si 9.6 Nb 4 and oxide glass of B 2 O 3 ·Bi 2 O 3 particles was spread on a metal substrate, and cross sectional images of ultra violet ray were exposed. Through the layer by layer stacking, micro lattice structures with a diamond type periodic arrangement were successfully formed. The composite structures could be obtained through the dewaxing and sintering process with the lower temperature under the transition point of metallic glass. Transmission spectra of the terahertz waves through the magnetophotonic crystals were measured by using a terahertz time domain spectroscopy.

Current Status of Bioinks for Micro-Extrusion-Based 3D Bioprinting

“…Many printing technologies like light-mediated stereolithography (SLA) [11,12], selective laser sintering (SLS) of polymeric and metallic powders [13], fused deposition modelling (FDM) of synthetic thermoplastics [14,15], inkjet printing [16] and direct extrusion have been employed for scaffold printing [17]. In case of SLS, SLA and FDM, the processes involve high temperature, powder beds, solvent baths and high energy radiations which make them unsuitable for bioprinting of cell laden constructs.…”

Projection Microstereolithography as a Micro-Additive Manufacturing Technology: Processes, Materials, and Applications

“…Ronca et al 134 also embedded nanosized hydroxyapatite (Nano HAP) particles into synthesized poly(d,l-lactide) oligomers to fabricate porous structures. Yasui et al 115 25 Jiang et al, 35 Zissi et al, 80 Provin and Monneret, 81 Baker et al, 82 Goswami et al, 83 Ibrahim et al, 84 Gandhi and Bhole 85 Poly(ethylene glycol) diacrylate Leigh et al, 86 Lee and Fang, 87 Lee et al, 88 6 Choi et al, 8,67 Goswami et al, 83 Sun and Zhang, 91 Thomas et al 92 2,2-Dimethoxy-2-phenylacetophenone (DMPA) Lu and Chen, 75 Zissi et al, 80 Bertsch et al, 93 Park et al, 94 Jariwala et al 95 Irgacure ® series (2959, a 784, 819 a ) Stampfl et al, 48 Heller et al, 49 Lu et al, 72 Provin and Monneret, 81 Baker et al, 82 Gauvin et al, 96 Wu et al, 97 25 Provin and Monneret, 81 Bertsch et al, 93 Monneret et al, 98 Sun and Zhang, 102 Kirihara, 103 Noritoshi et al, 104 113 has been investigated as a means to introduce the desired material properties to 3D microstructures.…”

Stereolithographic additive manufacturing of acoustic devices with spatially modulated cavities

“…Multidimensional periodic, graded, fluctuated, and self‐similar structures could be successfully elaborated. Distribution profiles of energy propagations and material flows are spatially modulated for environmental compatibilities 9–14 …”

“…Distribution profiles of energy propagations and material flows are spatially modulated for environmental compatibilities. [9][10][11][12][13][14] Acoustic modules can theoretically harmonize resonates with comparable sound waves. Ceramic components with high rigidities were systematically fabricated for the profile modulations of the resonation spectra.…”