Dakka A, Lafait J, Sella C, Berthier S, Abd-Lefdil M, Martin J C, Maaza M
Laboratoire de Physique des Matériaux, Facult des Sciences, Université Mohammed V, Avenue Ibn Batouta, BP 1014 Rabat, Morocco.
Appl Opt. 2000 Jun 1;39(16):2745-53.
Ag -TiO2 nanocermet thin films, deposited for optical filtering applications by two sputtering techniques, codeposition and multilayer deposition, exhibit surface plasmon absorption in the spectral range 450 -500 nm. The cosputtering technique induces a columnar growth, whereas multilayer deposition produces a more-random distribution of silver inclusions. Both films have large, flat silver grains at the air -cermet interface. An optical double-heterogeneous layer model based on the experimental morphological parameters of the films accounts well for their experimental transmittance, notably for extra absorption near 700 nm, which is attributed to a surface plasmon in the flat silver grains of the surface.
通过共溅射和多层沉积这两种溅射技术沉积的用于光学滤波应用的银-二氧化钛纳米金属陶瓷薄膜，在450 - 500纳米光谱范围内呈现表面等离子体吸收。共溅射技术导致柱状生长，而多层沉积使银夹杂物分布更随机。两种薄膜在空气-金属陶瓷界面处都有大的扁平银颗粒。基于薄膜实验形态参数的光学双异质层模型很好地解释了它们的实验透过率，特别是700纳米附近的额外吸收，这归因于表面扁平银颗粒中的表面等离子体。
