Pressure Dependent Characteristics of 1D Random Photonic Crystals

Abstract The effects of hydrostatic pressure on the defective random one dimensional photonic crystals (1DPC) were investigated for two cases polymeric materials. polymers, Polystyrene (PS), and Polymethyl methacrylate (PMMA) act as defect layer. Where structure is modeled with a combination silicon silica. transmission spectra multilayer structures under are analyzed using transfer matrix method. numerical results reveal significant shift localized states towards shorter wavelength i.e., from 1550 to 1405 nm range 0-6 GPa. very narrow which depends photoelastic relations between selected sensitivity R 2 value obtained in PMMA inserted 29.5 nm/GPa 0.959 respectively. When replaced by Polystyrene, improved 35 0.987 These properties facilitate their applications designing sensors. proposed configurations physically realizable versatile.