Study of optical and thermo-optical properties of a hybrid photopolymer material based on thiol-siloxane and tetraacrylate oligomer

Optical (refractive index and absorption coefficient) and thermo-optical (linear thermal expansion and thermo-optic coefficients) characteristics of a new hybrid organic-inorganic photopolymer material “Hybrimer-TATS” based on thiol-siloxane and tetraacrylate oligomers are studied. Variation of the ratio of initial components makes it possible to change the thermo-optic coefficient from −0.7·10 −4 to 0,66 · 10 −4 K −1 , which offers prospects for synthesizing athermal optical components and optical elements with a high sensitivity to temperature variation for thermal sensors.