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Ali A. Said
Researcher at University of Central Florida
Publications - 99
Citations - 14345
Ali A. Said is an academic researcher from University of Central Florida. The author has contributed to research in topics: Laser & Femtosecond. The author has an hindex of 27, co-authored 99 publications receiving 12944 citations.
Papers
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Journal ArticleDOI
Sensitive measurement of optical nonlinearities using a single beam
TL;DR: In this paper, a single-beam technique for measuring both the nonlinear refractive index and nonlinear absorption coefficient for a wide variety of materials is reported, including a comprehensive theoretical analysis.
Journal ArticleDOI
High-sensitivity, single-beam n(2) measurements.
TL;DR: A simple yet highly sensitive single-beam experimental technique for the determination of both the sign and magnitude of n(2), where the sample is moved along the z direction of a focused Gaussian beam while the repetitively pulsed laser energy is held fixed.
Journal ArticleDOI
Determination of bound-electronic and free-carrier nonlinearities in ZnSe, GaAs, CdTe, and ZnTe
Ali A. Said,Mansoor Sheik-Bahae,David J. Hagan,Tai-Huei Wei,Jun Wang,J. Young,E. W. Van Stryland +6 more
TL;DR: In this article, the authors extend the application of the Z-scan experimental technique to determine free-carrier nonlinearities in the presence of bound electronic refraction and two-photon absorption.
Journal Article
Sensitive measurement of optical nonlinearities using a single beam
TL;DR: In this paper, a single-beam technique for measuring both the nonlinear refractive index and nonlinear absorption coefficient for a wide variety of materials is reported, including a comprehensive theoretical analysis.
Journal ArticleDOI
Fabrication of high-aspect ratio, micro-fluidic channels and tunnels using femtosecond laser pulses and chemical etching
TL;DR: A volume sampling method to generate three-dimensional patterns is proposed and a systematic SEM-based analysis of the microstructure gives new insights toward a better understanding of the femtosecond laser interaction with fused silica glass.