Nonlinear effects and photonic phase transitions in Nd

Autor: André L, Moura, Sandra J, Carreño, Pablo I R, Pincheira, Lauro J Q, Maia, Vladimir, Jerez, Ernesto P, Raposo, Anderson S L, Gomes, Cid B, de Araújo
Rok vydání: 2020
Zdroj: Applied optics. 59(13)
ISSN: 1539-4522
Popis: The interplay between gain and scattering of light propagating in disordered media allows operation of random lasers (RLs)-lasers without conventional optical cavities. In the present paper, we review our recent contributions in this area, which include the demonstration of self-second-harmonic and self-sum-frequency generation, the characterization of Lévy's statistics of the output intensity fluctuations, and replica symmetry breaking (analogue to the spin-glass phase transition) by RLs based on nanocrystals containing trivalent neodymium ions.
Databáze: OpenAIRE