【摘要】 本文研究了ＰＥＣＶＤ方法制备Ｓｉ－Ｏ－Ｎ系梯度薄膜材料，并运用计算机控制技术成功地制备了涂层折射率随膜深成正弦波形式连续变化的Ｒｕｇａｔｅ单通带滤波器样品。结果表明，采用ＰＥＣＶＤ方法可以制备性能上乘、结构复杂的梯度薄膜材料，ＰＥＣＶＤ方法在研究、开发高级光学涂层领域有着宽广的应用前景。更多还原

【Abstract】 Si O N system functionally gradient thin film is grown by plasma enhanced chemical vapour deposition(PECVD) controlled by computer,using SiH 4(15% diluted by N 2),N 2O and NH 3 as reactants.The properties of the gradient film,refractive index n and diposition rate G depend on the reactant ratio.The gradient silicon oxynitride has been used successfully for the fabrication of rugate filter which employs a sinusoidal refractive index depth profile.The results show that the way of PECVD has the practicability in fabricating gradient thin film.更多还原