| abstract |
A laser processing glass processed by laser light irradiation, the composition of which satisfies the following relationship. 40 ≦ M [NFO] ≦ 705 5 ≦ (M [TiO 2 ]) ≦ 45 5 ≦ M [NMO] ≦ 40 [wherein M [NFO], M [TiO 2 ] and M [NMO] are respectively the content of network forming oxides (mol%), the content of TiO 2 (mol%), and represents the content of the network modifier oxide (mol%). ]. According to this structure, the glass for laser processing which can carry out the laser processing not only near the glass surface but inside the glass is obtained. |