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physics.optics2019
Description of a multifocal arrangement of asymmetric Kummer-beam optical vortices
Natalia Londoño, Edgar Rueda, Jorge A. Gómez +2
In this work, an analytic expression is derived for the optical field generated by an off-axis Gaussian beam diffracted by a Discrete Vortex-Producing Lens. With this system, a mul…
physics.optics2018
Nonlinear optical properties of two and three-dimensional hybrid perovskite using single beam F-scan technique at 1064 nm
Juan Serna, José Uribe, Edgar Rueda +4
In this paper two-photon absorption coefficient and nonlinear refractive index have been measured at 1064 nm for a new two-dimensional (CH3(CH2)2NH3)2(CH3NH3)2Pb3Br10…
physics.optics2018
Single-beam reflection technique for determination of nonlinear-refractive index of thin-film semiconductors using an electrically focus tunable lens
Juan Serna, Julián Henao, Edgar Rueda +2
In this paper, we propose a technique named reflection F-scan or RF-scan, that can be used to measure the nonlinear-refractive index n_2 of thin-film semiconductors. In this techni…