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Sistema automatizado para gravação de estruturas fotônicas
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2017-11-22)
An automated system is reported in this work with the goal of fabricating photonic structures by the direct-write technique with femtosecond laser pulses. This technique uses a finely focused laser beam into transparent ...
Characterization of self-cleaning properties on superhydrophobic aluminum surfaces fabricated by direct laser writing and direct laser interference patterning
(Elsevier B.V., 2020-09)
Self-cleaning ability on technical surfaces can increase the added value of a product. A common path to achieve this property is making the surface superhydrophobic so that water droplets can roll down, picking up dirt ...
Desarrollo de dispositivos ópticos integrados por escritura láser para tecnologías fotónicas
(Universidad Nacional de Quilmes, 2020-03-10)
Esta tesis doctoral propone el estudio, simulación, diseño y caracterización de múltiples dispositivos ópticos integrados mediante la técnica de microfabricación de escritura directa con láser de femtosegundos en Niobato ...
UV laser photofabrication of waveguide couplers using self-patterning organic-inorganic hybrids
(2011)
Planar waveguides with controlled refractive index were produced using thin films of sol-gel derived organic-inorganic hybrids, so called di-ureasils. Spectroscopic ellipsometry was used to characterize the films thickness ...
Fabrication and electrochemical evaluation of micro-supercapacitors prepared by direct laser writing on free-standing graphite oxide paper
(Elsevier B.V., 2019-07-15)
This article presents results of a pulsed UV laser method for the simultaneous reduction of graphite oxide (GO) and patterning of reduced graphene oxide (rGO). This direct laser writing method was applied to the fabrication ...
Buried waveguides in Nd:YLF crystals obtained by femtosecond laser writing under double line approach
(Springer, 2013-03)
In this paper, we present buried waveguides fabricated by fs laser writing in Nd3+ doped YLF crystal under double line approach (Miura et al. in Appl. Phys. Lett. 71:3329?3331, 1997). The waveguides were made by focusing ...
Light coupling in single-track guiding structures obtained by femtosecond laser writing in lithium niobate
(Optical Society Of America, 2014-03)
n this Letter we present a study of light coupling into a pair of Type II waveguides made of lithium niobate crystals by using femtosecond laser writing. Simulations based on the beam propagation method and optical fiber ...
Intensity modulator fabricated in LiNbO3 by femtosecond laser writing
(Elsevier, 2018-12)
This work presents the design, development and characterization of an integrated optical modulator based on a Mach Zehnder Interferometer (MZI) recorded inside x-cut Lithium Niobate (LNB) wafers. These optical circuits ...