EFFECT OF UV LASER ON SPECTRAL PROPERTIES OF BORATE GLASSES DOPED WITH COPPER CHLORIDE NANOCRYSTALS

• Published in: Nauchno-tekhnicheskiĭ vestnik informat͡s︡ionnykh tekhnologiĭ, mekhaniki i optiki Vol. 17; no. 1; p. 178
• Main Authors: Babkina, A N, Trots, K I, Shirshnev, P S, Nikonorov, N V
• Format: Journal Article
• Language: Russian
• Published: Saint Petersburg St. Petersburg National Research University of Information Technologies, Mechanics and Optics 01-01-2017
• Subjects: Absorption spectra; Aluminum; Color centers; Copper; Copper chloride; Crystallization; Excitation spectra; Excitons; Lasers; Nanocrystals; Photochromism; Potassium; Ultraviolet lasers; Ultraviolet spectra; X-rays
• ISSN: 2226-1494; 2500-0373
• DOI: 10.17586/2226-1494-2016-17-1-178-181

We present the results of the pulsed ultraviolet laser effect on the spectral properties of the potassium-aluminium-borate glasses doped with the copper chloride nanocrystals with the average size of 3.1-6.3 nm. We have studied the changes of the exciton absorption spectra of the CuCl nanocrystals induced by different duration of the laser exposure. The results show the possibility of the laser-induced crystallization and growth of the nanocrystals. For the first time the effect of the irreversible photochromism has been obtained in the potassium-aluminium-borate glasses doped with the copper chloride nanocrystals. The effect is associated with the formation of the temperature stable Cu0n colloidal color centers.