Objective
- Preparation of plastic r-GRIN-lenses (Graded Refractive Index) with
high refractive index amplitude and short production time
Method
- in situ production of ZrO2-nanoparticles with high refractive index in a
polymerizable matrix
- formation of a refractive index gradient by variation of the concentration of the
nanoparticles induced by electrophoresis
- using of ring electrodes for the formation of the electrical potential inside of the
electrophoretic cell
- freeze in of the nanoparticle concentration profile by photopolymerization of the matrix
Results
- parabolic concentration profile of the ZrO2-nanoparticles in bulk
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- parabolic refractive index gradient
- GRIN lense with a refractive index amplitude of 7 . 10-2 ,
diameter of the lenses 0.9 cm and thickness about 1 cm
- production time less than 6 hours
Application
- adaptive optics
- collimating elements
- correction of aberrations in optical systems, cameras, lenses for microscopes
Benefits
- high refractive index change
- short production time
- formation of different refractive index profils by variation of the electrode geometry
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Laboratory Technology
