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Influence of effective number of pulses on the morphological structure of teeth and bovine femur after femtosecond laser ablation
(SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERSBELLINGHAM, 2012)
Femtosecond lasers have been widely used in laser surgery as an instrument for contact-free tissue removal of hard dental, restorative materials, and osseous tissues, complementing conventional drilling or cutting tools. ...
Femtosecond lasers for processing glassy and polymeric materials
(Universidade Federal de São Carlos - Departamento de Engenharia de MateriaisSão Carlos, 2014-03)
Novel materials have been developed to meet the increasing mechanical, electrical and optical properties required for technological applications in different fields of sciences. Among the methods available for modifying ...
State-selective Rydberg excitation with femtosecond pulses
(American Physical Society, 2013-04)
We show that multipulse excitation of Rydberg atoms with a sequence of short time-delayed femtosecond pulses results in strong n selection of the final-state amplitudes. In the experiment, a 150 fs laser pulse, which alone ...
High-speed tunable photonic crystal fiber-based femtosecond soliton source without dispersion pre-compensation
(papers in physics, 2012-02)
We present a high-speed wavelength tunable photonic crystal fiber-based source capable of generating tunable femtosecond solitons in the infrared region. Through measurements and numerical simulation, we show that ...
Compression of 1030-nm femtosecond pulses after nonlinear spectral broadening in Corning® HI 1060 fiber: Theory and experiment
(Centro de Ciencias Aplicadas y Desarrollo Tecnológico, 2016)
Surface morphology and structural modification induced by femtosecond pulses in hydrogenated amorphous silicon films
(Amer Scientific Publishers, 2015-03-01)
This work investigates the modification, resulting from fs-laser irradiation (150 fs, 775 nm and 1 kHz), on the structure and surface morphology of hydrogenated amorphous silicon (a-Si:H) thin films. The sample morphology ...
Necrosis response to photodynamic therapy using light pulses in the femtosecond regime
(SpringerLondon, 2013-07)
One of the clinical limitations of the photodynamic therapy (PDT) is the reduced light penetration into biological tissues. Pulsed lasers may present advantages concerning photodynamic response when compared to continuous ...
In vitro studies of femtosecond pulse interaction with bone
(2008)
Lasers utilization in biomedical areas is a growing area, in spite of the collateral thermal damage that they can cause in the surrounding tissue. The purpose of this study is to analyze, in vitro, the ablative interaction ...
Nonlinear absorption spectrum in perylene derivatives
(2005-10-31)
Knowledge about nonlinear absorption spectra of materials used in photonic devices is of paramount importance in determining their optimum operation wavelengths. In this work, we have investigated the two-photon absorption ...
Nonlinear absorption spectrum in perylene derivatives
(2005-10-31)
Knowledge about nonlinear absorption spectra of materials used in photonic devices is of paramount importance in determining their optimum operation wavelengths. In this work, we have investigated the two-photon absorption ...