Numerous applications for the unique organic nonlinear optical crystals have been proposed, including frequency doubling, optical switching, optical data storage, optical modulation, laser remote sensing, and pharmaceuticals. A slow evaporation growth method was employed to create high-quality carbamidebutanedioic acid crystal doped with rubidium chloride. The PXRD pattern proved the crystalline nature. By using FTIR, the necessary functional groups were confirmed. The mechanical stability of the developing crystal indicates that it is a soft material. The grown crystal's dielectric characteristics were addressed. Due to its excellent optical absorbance, the chemical in question is a good choice for device assembly. For NLO applications, the produced crystal seems to be extraordinarily transparent over the whole visible region.

Nonlinear optical;FTIR; PXRD; CarbamideButanedioic Acid; Rubidium chloride.