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Antireflection coating prepared by plasma polymerization of perfluorobutene-2
Applied Optics
|February 16, 2010
Summary
Plasma-polymerized coatings of perfluorobutene-2 effectively enhance light transmittance in polymethylmethacrylate lenses. These single-layer antireflection coatings provide a flat, increased transmittance across the visible spectrum.
Area of Science:
- Materials Science
- Optical Engineering
- Polymer Chemistry
Background:
- Polymethylmethacrylate (PMMA) is a widely used transparent polymer.
- Optical clarity of PMMA can be limited by surface reflections.
- Antireflection coatings are crucial for improving light transmission in optical components.
Purpose of the Study:
- To evaluate the efficacy of plasma-polymerized perfluorobutene-2 as a single-layer antireflection coating for PMMA.
- To quantify the improvement in light transmittance and spectral flatness achieved by the coatings.
Main Methods:
- Fabrication of single-layer coatings using plasma polymerization of perfluorobutene-2 on PMMA substrates.
- Measurement of spectral transmittance of coated and uncoated PMMA lenses across the 400-700 nm wavelength range.
Main Results:
- Plasma-polymerized perfluorobutene-2 coatings demonstrated effectiveness as antireflection layers.
- Coated PMMA lenses exhibited approximately 4% higher light transmittance compared to uncoated lenses.
- The transmittance spectrum of the coated lenses remained essentially flat between 400 nm and 700 nm.
Conclusions:
- Perfluorobutene-2 plasma polymer coatings are a viable solution for single-layer antireflection applications on PMMA.
- These coatings significantly enhance optical performance by increasing broadband light transmittance.
