SPIE is the international society for optics and photonics. Since 1955, SPIE has focused on supporting and advancing the international optics and photonics community. Connecting, engaging, and serving our global constituency of more than 256,000 people from 184 countries. SPIE Digital Library includes conference proceedings with more than 12,000 volumes and 14 professional optical journals, 10 of which are indexed by SCI. The proceedings and journals are available back to the year of the first volume, the earliest dates back to 1962. The Library has subscribed to conference proceedings and journals from SPIE Digital Library.