114 citations · 536 across the 14 of their papers we have counts for
14 papers
Observation of Replica Symmetry Breaking in Filamentation and Multifilamentation
André C. A. Siqueira, Guillermo Palacios, Jessica E. Q. Bautista +4
We report the experimental observation and characterization of Replica Symmetry Breaking (RSB) manifestation while analyzing the transverse intensity profile of pulses in filamenta…
Replica Symmetry Breaking in the Quasi Mode Locked Regime of Titanium Sapphire Lasers
Nicolas P. Alves, Ricardo V. M. de Almeida Filho, Isaac C. Nunes +4
Recent observations of replica symmetry breaking (RSB) in ytterbium-based mode-locked fiber lasers have revealed glassy behavior in the quasi-mode-locked (QML) regime. Here, we inv…
Picosecond cubic and quintic nonlinearity of lithium niobate at 532 nm
Hongzhen Wang, Georges Boudebs, Cid de Araújo
The nonlinear (NL) optical response of bulk lithium niobate (LiNbO) was investigated at 532 nm using the second harmonic of a Nd:YAG laser delivering pulses of 12 ps. The exper…
Generation of robust temporal soliton trains by the multiple-temporal-compression (MTC) method
André C. A. Siqueira, Guillermo Palacios, Albert S. Reyna +3
We report results of systematic numerical analysis for multiple soliton generation by means of the recently reported multiple temporal compression (MTC) method, and compare its eff…
Generation of multiple ultrashort solitons in a third-order nonlinear composite medium with self-focusing and self-defocusing nonlinearities
André C. A Siqueira, Edilson L. Falcão-Filho, Boris A. Malomed +1
Theoretical consideration of the propagation of femtosecond-Gaussian pulses in a 1D composite medium, consisting of alternating self-focusing (SF) and self-defocusing (SDF) wavegui…
Nonlinear refractive index of electric field aligned gold nanorods measured with a Hartmann-Shack wavefront aberrometer
Melissa Maldonado, Leonardo de S. Menezes, Leonardo F. Araujo +5
The capability to dynamically control the nonlinear refractive index of plasmonic suspensions may enable innovative nonlinear sensing and signaling nanotechnologies. Here, we exper…
Photonic ferromagnetic-like spontaneous mode-locking phase transition with replica symmetry breaking in multimode Nd:YAG laser
André L. Moura, Pablo I. R. Pincheira, Ernesto P. Raposo +2
The recent reports of the replica symmetry breaking (RSB) phenomenon in photonic experiments [1-5] boosted the understanding of the role of disorder in multimode lasers, as well as…
Observation of Replica Symmetry Breaking in the 1D Anderson Localization Regime in an Erbium-Doped Random Fiber Laser
Anderson S. L. Gomes, Bismarck C. Lima, Pablo I. R. Pincheira +5
The analogue of the paramagnetic to spin-glass phase transition in disordered magnetic systems, leading to the phenomenon of replica symmetry breaking, has been recently demonstrat…
Robust self-trapping of vortex beams in a saturable optical medium
Albert S. Reyna, Georges Boudebs, Boris A. Malomed +1
We report the first observation of robust self-trapping of vortex beams propagating in a uniform condensed medium featuring local saturable self-focusing nonlinearity. Optical vort…
Replica symmetry breaking in specially designed TiO nanoparticles-based dye-colloidal random laser
Pablo I. R. Pincheira, Andréa F. Silva, Sandra J. M. Carreño +5
By using specially designed nanoparticles scatterers which prevents photodegradation of the dye, we present clear demonstration of replica symmetry break and a photonic paramagneti…
Random lasers, Lévy statistics and spin glasses: Synergy between photonics and complex systems
Anderson S. L. Gomes, Ernesto P. Raposo, André L. Moura +5
Random lasers have been recently approached as a photonic platform for disordered complex systems, such as spin glasses. In this work, using a Nd:YBO random laser system…
Stability conditions for one-dimensional optical solitons in cubic-quintic-septimal media
Albert S. Reyna, Boris A. Malomed, Cid B. de Araujo
Conditions for stable propagation of one-dimensional bright spatial solitons in media exhibiting optical nonlinearities up to the seventh-order are investigated. The results show w…
Nonlinearity management of photonic composites and observation of spatial-modulation instability due to quintic nonlinearity
Albert S. Reyna, Cid B. de Araújo
We present a procedure for nonlinearity management of metal-dielectric composites. Varying the volume fraction occupied by silver nanoparticles suspended in acetone we could cancel…
Distinguishing orbital angular momenta and topological charge in optical vortex beams
Anderson M. Amaral, Edilson L. Falcão-Filho, Cid B. de Araújo
In this work we discuss how the classical orbital angular momentum (OAM) and topological charge (TC) of optical beams with arbitrary spatial phase profiles are related to the local…