Replica symmetry breaking in specially designed TiO$_{2}$ nanoparticles-based dye-colloidal random laser
Pablo I. R. Pincheira, Andr\'ea F. Silva, Sandra J. M. Carre\~no,, Serge I. Fewo, Andr\'e L. Moura, Ernesto P. Raposo, Anderson S. L. Gomes and, Cid B. de Ara\'ujo
TL;DR
This paper demonstrates replica symmetry breaking and a phase transition in a dye-colloidal random laser using specially designed TiO2 nanoparticles that prevent photodegradation, revealing complex photonic behaviors.
Contribution
It introduces a novel random laser system with TiO2 nanoparticles that enables observation of replica symmetry breaking and phase transitions in the incoherent feedback regime.
Findings
Observation of replica symmetry breaking
Detection of a spin-glass phase transition
Prevention of dye photodegradation
Abstract
By using specially designed nanoparticles scatterers which prevents photodegradation of the dye, we present clear demonstration of replica symmetry break and a photonic paramagnetic to spin-glass phase transition in a random laser operating in the incoherent feedback regime based on ethanol solution of Rhodamine 6G and amorphous TiO2 nanoparticles.
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