Radiation hardness studies of VCSELs and PINS for the opto-links of the Atlas SemiConductor Tracker - Chu, M; Hou, S; Huffman, T; Issever, C; Lee, S; Lu, R; Su, D; Teng, P; Weidberg, A (NUCLEAR INSTRUMENTS and METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007)