Enhancement of Growth Perfection and Optical Transmission in Rhodamine B-doped KDP Single Crystal for Photonic Applications

In recent years, because of the rapid development persisting in the modern electronic industries, materials with the ability of producing highly efficient harmonic generation have acquired great demand as they are very much suitable for high-speed devices and for the progressing field of optical communication system. In the present work, we report the growth, diffraction and spectroscopic features of the pure and Rhodamine B (RB)-doped potassium dihydrogen phosphate (KDP) crystals. The title crystal was grown by the conventional slow evaporation technique. The XRD and UV-Visible spectral studies have been carried out to examine the structural and optical behavior of the grown crystals. Optical microscopic technique has been utilized to examine the surface features of the grown crystals and the impedance spectroscopic measurements have been carried out to know the electrical energy storage capability and electrical conductivity behaviour. Based on the growth features and the observed analytical results, it is authenticated that that the RB-doped crystal possesses better crystalline nature and optical transmittance and hence it is strongly suggested for the applications of photonic devices.