Determination of the effective refractive index of porous silicon/polymer composite films

• 作 者: 贾振红
• 机 构: College of Information Science & Engineering, Xinjiang University, Urumqi 830046
• 出 处: Chinese Optics Letters
• 发表日期: 2005年10期
• 关键词: porous refractive porosity pores inserted gravimetric fabricate mostly etching f

The equation for calculating the effective refractive index of porous silicon inserted polymer was obtainedby three-component Bruggeman effective medium model. The dependence of the effective refractive indexof porous silicon/polymer composite films on the polymer fraction with various initial porosity was giventheorically and experimentally respectively. The porous silicon and polymer polymethylmetacrylate baseddispersive red one (PMMA/DR1) composite films were fabricated in our experiments. It is found that themeasured effective refractive index of porous silicon inserted polymer was slightly lower than the calculatedresult because of the oxidization of porous silicon. The effective refractive index of oxidized porous siliconinserted polymer also was analyzed by four-component medium system.

The dependence of the effective refractive index of porous silicon / polymer composite films on the polymer fraction with various initial porosity was giventheorically and experimentally respectively. The porous silicon and polymer polymethylmetacrylate based based dispersive red one (PMMA / DR1) composite films were fabricated in our experiments. It is found that themeasured effective refractive index index of porous silicon inserted polymer was slightly lower than the calculated result because of the oxidization of porous silicon. effective refractive index of oxidized porous silicon inserted polymer also was analyzed by four-component medium system.