Open AccessCompositional redistribution in CaO–Al2O3–SiO2 glass induced by the migration of a steel microsphere due to continuous-wave-laser irradiation
Author(s) -
Takuya Kishi,
Tetsuto Kokan,
Yukihiro Yoshida,
Tatsuki Iwamoto,
Hirofumi Hidai,
Fumiya Noritake,
Nobuhiro Matsushita,
Tetsuji Yano
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.013020
Subject(s) - materials science , glass microsphere , laser , microsphere , optics , continuous wave , irradiation , laser power scaling , redistribution (election) , physics , chemical engineering , politics , political science , nuclear physics , law , engineering
A high-power continuous-wave (CW) laser was used to move a steel microsphere through a CaO-Al 2 O 3 -SiO 2 glass block at room temperature along a trajectory toward the laser source. A compositional analysis revealed that the CaO concentration in the glass decreased at the center of the microsphere's trajectory but increased in the area adjacent to it; the SiO 2 concentration showed an opposite trend while the Al 2 O 3 concentration did not change. Further, the compositional difference between the center and the area adjacent to the microsphere trajectory depends on the velocity of the microsphere, which is controllable by tuning the laser power.