114 citations · 357 across the 10 of their papers we have counts for
11 papers
Towards accurate real-time luminescence thermometry: an automated machine learning approach
Emanuel P. Santos, Roberta S. Pugina, Eloísa G. Hilário +7
Luminescence thermometry has been extensively exploited in the last decades both from the fundamental and applied point of views. The application of photoluminescent nanoparticles…
Metallic nanoparticles-decorated NdxY1-xAl3(BO3)4 sub-micrometric particles to enhance anti-Stokes excitation performance
Eloísa G. Hilário, Tatiana Habib, Célio V. T. Maciel +8
In the anti-Stokes excitation of trivalent rare-earth ions (RE3+), the excitation photons energy is smaller than that of a given absorption transition, and the energy mismatch can…
Energy-looping and photon-avalanche-like phenomena in NdxY1.00-xAl3(BO3)4 powders excited at 1064 nm
Rodrigo F. da Silva, Daniel F. Luz, Célio V. T. Maciel +5
We investigate the role of the Nd3+ content on the PA characteristics in NdxY1.00-xAl3(BO3)4 particles with x ranging from 0.05 to 1.00. It is known that the replacement of Y3 by N…
Photon avalanche up-conversion in NdAl(BO) nanoparticles excited at 1064 nm
Jefferson F. da Silva, Rodrigo F. da Silva, Emanuel P. Santos +2
We report efficient non-resonant ground state excitation at 1064 nm of trivalent neodymium (Nd) ions in stoichiometric neodymium aluminum borate NdAl(BO) nanopar…
Probing the reciprocal lattice associated with a triangular slit to determine the orbital angular momentum for a photon
W. C. Soares, A. L. Moura, Askery Canabarro +7
The orbital angular momentum conservation of light reveals different diffraction patterns univocally dependent on the topological charge of the incident light beam when passing thr…
Lévy flights for light in ordered lasers
Erick G. Rocha, Emanuel P. Santos, Bruno J. dos Santos +4
Lévy flights for light have been demonstrated in disordered systems with and without optical gain, and remained unobserved in ordered ones. In the present letter, we investigate, n…
Near-infrared holographic photorefractive recording under applied electric field in undoped BiTiO sillenite crystal
André L. Moura, Alexsandro F. Pereira, Askery Canabarro +3
Direct holographic recording in undoped BiTiO crystal at 1064 nm is investigated aiming the characterization of diffraction efficiency under action of applied dc elec…
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…
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…