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Y-branch tunable laser design: Modeling, control and experimental validation
(Elsevier, 2021-08)
We present a novel and complete design procedure for a full C-band tunable Y-branch laser. A detailed model that combines the transfer matrix method and the numerical solution of the laser rate equations, is presented. The ...
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 ...
Comparison of structural colors achieved by laser-induced periodic surface structures and direct laser interference patterning
(Japan Laser Processing Soc, 2020-09)
Engraving surfaces with holographic features is not only used for decorative applications, but also for protecting products from counterfeit and piracy. Tins structural coloration can be produced on large areas at ...
Characterization and Stability of Silver Nanoparticles in Starch Solution Obtained by Femtosecond Laser Ablation and Salt Reduction
(American Chemical Society, 2017-05)
Silver nanoparticles (Ag NPs) colloids obtained by femtosecond laser ablation in soluble starch (st) solution and silver salt reduction methods were characterized using optical extinction spectroscopy, micro-Raman spectroscopy, ...
MATFESA: Strain and refractive index field estimation after femtosecond laser interaction with transparent material
(Springer Heidelberg, 2013-03)
In this paper we present the development of an open code ("MATFESA") based on the Finite Element Method (FEM) which can be used to estimate the strain and refractive index fields after femtosecond laser writing process by ...
Picosecond laser interference patterning of periodical micro architectures on metallic molds for hot embossing
(Multidisciplinary Digital Publishing Institute, 2019-10-18)
In this work, it is demonstrated that direct laser interference patterning (DLIP) is a method capable of producing microtextured metallic molds for hot embossing processes. Three different metals (Cr, Ni, and Cu), relevant ...
Phenomenological studies of femtosecond laser ablation on optical thin films for integrated photonics
(Elsevier, 2020-05)
In this work, we present a well-supported procedure to fabricate ridge optical waveguides onto thin films of PLZT by femtosecond laser ablation. To achieve smooth-guiding structures that guarantee good optical performance ...
Interaction of ultra-short laser pulses with metal surfaces: Impulsive jelliun-Volkov approximation versus the solution of the time-dependent Schrödinger equation
(American Physical Society, 2007-12)
Electron emission coming from the valence band of metal surfaces due to grazing incidence of high frequency ultrashort laser pulses is studied. We introduce a distorted-wave method, named impulsive jellium-Volkov (IJV) ...
Isotopic analysis of uranium by laser induced breakdown spectroscopy
(Pergamon-Elsevier Science Ltd, 2020-05)
There are several advantages of using laser ablation (LA) for nuclear material detection, which includes minimal sample preparation, near-instantaneous detection, and isotope detection. The well-known laser ablation method ...
On control of chaos in the Kerr lens mode locked Ti:Sapphire laser
(Elsevier Science, 2006-04)
In this paper, I present the numerical demonstration of a simple way to reduce the pulse duration of a Kerr lens mode locked Ti:Sapphire laser. The core of the method lies in the low dimensional deterministic chaos that ...