Random lasing emission from colloidal solutions of graphitic carbon nitride microstructures

In this paper, we report on random lasing emission from colloidal solutions of graphitic carbon nitride (g-C3N4) microstructures. The g-C3N4 microstructures are dispersed in rhodamine B (RhB) dye solution to provide the necessary optical feedback via light multi-scattering events. RhB molecules gain stimulated process under intense pumping. It is experimentally demonstrated that action occurs composed and microstructures, after a specific threshold. We study pump dependent behavior proposed system. Since only amplified spontaneous achieved without it existence has key role observation emission. Finally, change concentration observe output intensity increases threshold decreases by increasing then verified can be good candidate for scattering medium lasers essential realizing provided