LASER-INDUCED PHASE-STRUCTURE CHANGES IN GLASS-LIKE MATERIALS
ITMO University, Saint Petersburg, 197101, Russian Federation; scientific researcher
A. V. Kolobov
National Institute of Advanced Industrial Science and Technology, Nanoelectronics Research Institute, Tsukuba, Japan; Chief Researcher
T. . Junji
National Institute of Advanced Industrial Science and Technology, Nanoelectronics Research Institute, Tsukuba, Japan; Professor; Chief Researcher
Abstract. Analysis of experimental and qualitative theoretical studies of fundamental photochemical and photophysical processes in laser machining of glass-like ceramics is presented. Results related to glasses and glassceramics are compared to data on phase-change memory alloys. Controllable laser exposure can locally change the properties of the materials under consideration, e.g., its chemical solubility and transmittance in the visible and IR spectral ranges. In some cases, the process may be reversed, either thermally or by appropriately choosing the parameters of the laser exposure.
Keywords: silicate glass, chalcogenide glass, phase structure changes, laser induced changes