Holographic cure monitoring of the DuPont Somos~TM 7100 stereolithography resin

摘要

The optical characteristics of a commercial UV curable resin are investigated using nondegenerate four-wave mixing. The material assessed is an epoxy resin, DuPont Somos~TM 7100. The holographic graings were written at a wavelength of λ=351.1nm for an irradiance range 0.5-3.0 W/cm~2 and read at λ=632.8nm in order to assess the reactivity, curing speed, shrinkage and resolution of the resin.