Chinese Optics Letters, 2010, 8 (6): 624, Published Online: Jun. 22, 2010
Preparation of high performance thin-film polarizers Download: 1100次
Abstract
The optical performance of thin film polarizers is highly sensitive to the layer thicknesses of thin film. The thicknesses of the sensitive layers are optimized in order to gain broader polarizing zone in such case when the total layer thickness does not increase. An automatic layer thickness control system is established, and errors caused by different monitoring methods are analyzed. With this thickness control system, thin-film polarizers with T<sub>p</sub> higher than 98% and T<sub>p</sub>/T<sub>s</sub> higher than 200:1 (T<sub>p</sub> and T<sub>s</sub> are transmissions for p- and s-polarizations, respectively) with the bandwidth of 11 nm are prepared. Using the system allows for optimum repeatability of three successive runs.
Meiping Zhu, Kui Yi, Weili Zhang, Zhengxiu Fan, Hongbo He, Jianda Shao. Preparation of high performance thin-film polarizers[J]. Chinese Optics Letters, 2010, 8(6): 624.