TY - RPRT TI - High-precision system for automatic null ellipsometric measurement. AU - Henian Zhu AU - Liguo Liu AU - Yiwu Wen AU - Zhengde Lü AU - Baizhe Zhang PY - 2002 DO - 10.1364/ao.41.004536 UR - https://pubmed.ncbi.nlm.nih.gov/12153082/ ID - 12153082 ER -