Anomalous Lasing Behavior in a Nonlinear Plasmonic Random Laser
Optics
2024-08-08 v1
Abstract
An unprecedented double-threshold lasing behavior has been observed in a plasmonic random laser composed of Au nanoislands decorated on vertically standing ZnO nanorods, infiltrated with dye-doped polymer matrix. The strong coupling of random laser modes to plasmonic nanocavities results in a dominant absorption of the random laser emission, leading to the first unusual lasing threshold. At higher pump fluences, the nonlinear optical behavior of the Au nanoislands induces a second lasing threshold. Various statistical tools have been employed to analyze the intensity fluctuations of the random laser modes, validating this unique lasing behavior.
Cite
@article{arxiv.2408.03536,
title = {Anomalous Lasing Behavior in a Nonlinear Plasmonic Random Laser},
author = {Renu Yadav and Sourabh Pal and Subhajit Jana and Samit K. Ray and Maruthi M. Brundavanam and Shivakiran Bhaktha B. N},
journal= {arXiv preprint arXiv:2408.03536},
year = {2024}
}