TY - JOUR A1 - Bondarenko, Siegfried A1 - Villringer, Claus A1 - Steglich, Patrick T1 - Comparative Study of Nano-Slot Silicon Waveguides Covered by Dye Doped and Undoped Polymer Cladding TI - Applied Sciences N2 - Nonlinear optical dyes doped in optical polymer matrices are widely used for electro-optical devices. Linear optical properties change with dye concentration, which leads to a change in modal properties, especially in nano-structured integrated waveguides such as silicon slot-waveguides. Here, we investigate the influence of a nonlinear optical dye on the performance of a silicon-organic hybrid slot-waveguide. A simulation study of the modal and optical confinement properties is carried out and dependence of the structural parameters of the slot-waveguide and the organic cladding material is taken into account. As cladding material, a guest-host polymer system is employed comprising the nonlinear optical dye Disperse Red 1 (DR1) doped in a poly[methyl methacrylate] (PMMA) matrix. The refractive indices of doped and undoped PMMA were deduced from ellipsometric data. We present a guideline for an optimized slot-waveguide design for the fabrication in silicon-on-insulator technology giving rise to scalable, high-performance integrated electro-optical modulators. Y1 - 2019 UR - https://opus4.kobv.de/opus4-th-wildau/frontdoor/index/index/docId/1071 UR - https://nbn-resolving.org/urn:nbn:de:kobv:526-opus4-10716 SN - 2076-3417 VL - 9 IS - 1 PB - MDPI ER -