TY - JOUR
T1 - Writing of crystal-dots and lines by YAG laser irradiation and their morphologies in samarium tellurite glasses
AU - Kawasaki, S.
AU - Honma, T.
AU - Benino, Y.
AU - Fujiwara, T.
AU - Sato, R.
AU - Komatsu, T.
N1 - Funding Information:
This work was supported from the Grant of Nippon Sheet Glass Foundation for Materials Science and Engineering, the Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sport, and Culture, Japan, and by the 21st Century Center of Excellence (COE) Program in Nagaoka University of Technology. The authors thank Dr H. Saitoh, Nagaoka University of Technology, for the use of a micro-Raman spectroscopy apparatus.
PY - 2003/9/15
Y1 - 2003/9/15
N2 - A continuous-wave Nd:YAG laser operating at a wavelength of 1064 nm is used to irradiate BaO-Sm2O3-TeO2 glasses under various conditions (laser power: 0.5-0.7 W, irradiation time: 1-60 s), and the formation, behavior and morphology of crystal-dots and lines consisting of the Sm2Te6O15 phase are examined. Crystal-dots with a corn-like shape are formed at the surface of the glasses. The diameters of crystal-dots are 3-45 μm and their lengths (depths) toward the interior of glasses are 50-110 μm. The size of crystal-dots depends on laser power, laser irradiation time and Sm2O3 content. The diameter and length of crystal-dots increase almost linearly with the cube root of laser irradiation time t1/3, suggesting that the growth of crystal-dots in the YAG laser-induced crystallization is controlled by diffusion of constituent ions. Crystal-lines with a width of ∼10 μm are also written by scanning the YAG laser at a speed of 20-30 μm s-1. A model of YAG laser-induced crystallization is proposed.
AB - A continuous-wave Nd:YAG laser operating at a wavelength of 1064 nm is used to irradiate BaO-Sm2O3-TeO2 glasses under various conditions (laser power: 0.5-0.7 W, irradiation time: 1-60 s), and the formation, behavior and morphology of crystal-dots and lines consisting of the Sm2Te6O15 phase are examined. Crystal-dots with a corn-like shape are formed at the surface of the glasses. The diameters of crystal-dots are 3-45 μm and their lengths (depths) toward the interior of glasses are 50-110 μm. The size of crystal-dots depends on laser power, laser irradiation time and Sm2O3 content. The diameter and length of crystal-dots increase almost linearly with the cube root of laser irradiation time t1/3, suggesting that the growth of crystal-dots in the YAG laser-induced crystallization is controlled by diffusion of constituent ions. Crystal-lines with a width of ∼10 μm are also written by scanning the YAG laser at a speed of 20-30 μm s-1. A model of YAG laser-induced crystallization is proposed.
UR - http://www.scopus.com/inward/record.url?scp=0042529022&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0042529022&partnerID=8YFLogxK
U2 - 10.1016/S0022-3093(03)00365-X
DO - 10.1016/S0022-3093(03)00365-X
M3 - Article
AN - SCOPUS:0042529022
SN - 0022-3093
VL - 325
SP - 61
EP - 69
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 1-3
ER -