Glass surface treatment with excimer and CO2 lasers
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Cited by (84)
Fast fabrication of diffractive patterns on glass by excimer laser ablation
2022, Optics and Laser TechnologyPotential of CO<inf>2</inf>-laser processing of quartz for fast prototyping of microfluidic reactors and templates for 3D cell assembly over large scale
2021, Materials Today BioCitation Excerpt :Ultrafast picosecond laser was demonstrated as a valuable tool for direct cutting, drilling and micro-machining of glass as well as for glass-to-glass bonding without adhesive layers [31]. Despite excimer ultra-short (i.e., pulse width in the femtosecond to picosecond range) lasers provide high-precision material processing with crack- and almost debris-free surfaces and high precision profiles with respect to nanosecond or longer laser pulses [32–34], the related highly expensive instrumentation favored spreading use of economic (relatively simple equipment and low capital investment) microsecond-pulsed carbon dioxide (CO2) laser sources operating at wavelengths strongly absorbed by glasses [28,30,35]. Hence, although limited to the realization of micro-sized structures (since heat dissipation in the surrounding material during the photo-thermal process influences the spatial resolution), nowadays CO2 laser–based ablation/micro-machining represents a serial method to engrave patterns on glass materials (such as quartz, borofloat and pyrex) [35] that have found applications in solar cells to enhance light trapping efficiency [36].
Top-hat and Gaussian laser beam smoothing of ground fused silica surface
2020, Optics and Laser TechnologyCitation Excerpt :Buerhop et al. made use of CO2 laser to irradiate ground lead glass at a power density of 60 W/cm2 and the measured temperature was as high as 600 ℃ in after 200 s exposure. The irradiated surface got much smoother following 1 min laser incidence [10]. Bol'shepaev et al. polished curved surface of fused silica resonators with a CO2 laser.
Laser surface modification of structural glass for anti-slip applications
2019, Ceramics InternationalRepair of ultrasonic machining induced surface/subsurface cracks by laser irradiation
2019, Optics and Laser TechnologyCitation Excerpt :However, CO2 laser processing induces large temperature gradients in glass which cause thermal stress σ [27]. Thermal stress is proportional to the coefficient of thermal expansion, Young’s modulus and the temperature gradient [28]. If the induced tensile stress exceeds the fracture limit of the material, cracks will be generated at the surface.
New process of tempering color printed glass by using laser irradiation
2018, Procedia CIRP