We cordially invite you to submit a paper to the 6th International Symposium on Lasers, Scintillators and Non-Linear Optical Materials (ISLNOM-6), which will be held in the New Garden Hotel, Shanghai, China on Oct. 20-23, 2013. ISLNOM-6 will continue the tradition established by the previous meetings in Singapore (1997), Lyon, France (2000), Keystone, USA (2003), Prague, Czech Republic (2006) and Pisa, Italy (2009). The symposium provides an interdisciplinary forum for the presentation of the latest developments and breakthrough in fundamental and applied researches in the broad field of optical and optoelectronic materials, including material preparation technologies, characterization and practical application. The conference will be held in the beautiful and international metropolis of Shanghai, and will be organized by the Shanghai Institute of Ceramics, Chinese Academy of Sciences, and the Technical Institute of Physics and Chemistry，Chinese Academy of Sciences, and the State Key Lab of Crystal Materials, Shandong University.