Title :
The photochemical transformations and nanoclusters formation at the surface of silicates induced by CO2 laser radiation
Author :
Mukhamedgalieva, Anel F. ; Bondar, Anatolii M.
Author_Institution :
Moscow State Mining Univ., Russia
Abstract :
The photochemical transformations caused by continuous CO2 laser radiation (105-106 W/cm2) at the surface of silicates (nepheline Na[AlSiO4], rodonite - CaMn4[Si5O15], zircon - ZrSiO4 etc.) have been investigated. The action of laser radiation on these silicates lead also to the creation of silicon and metallic nanoclusters at the irradiated surface. The appearance of such nanoclusters has been confirmed by means of photoluminescence method of investigation of irradiated surface. We suppose that all observed phenomena are connected with the selective breaking of the strong covalent Si-O bonds induced by resonant laser radiation.
Keywords :
bonds (chemical); carbon compounds; elemental semiconductors; gas lasers; laser beam effects; metal clusters; nanostructured materials; photoluminescence; physical chemistry; silicon; silicon compounds; CO2; CO2 laser radiation; CaMn4Si5O15; NaAlSiO4; Si-O; ZrSiO4; covalent Si-O bond; metallic nanocluster; nanocluster formation; nepheline; photochemical transformation; photoluminescence method; rodonite; silicate surface; silicon; surface irradiation; zircon; Atomic beams; Bonding; Electronic mail; Laser theory; Photochemistry; Photoluminescence; Silicon; Surface emitting lasers; X-ray lasers; Zirconium;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313650
