A lecture by Lauren Zarzar of Penn State University entitled “Color from Colorless Materials.” Lauren is an assistant professor of chemistry and an affiliate of the Materials Research Institute. The Zarzar Lab studies stimuli-responsive materials, the behavior of active matter, and laser fabrication methods to synthesize and pattern both inorganic and organic materials. https://www.zarzarlab.com/. In this lecture, Lauren explained why interference (structural) color can arise from even microscale structures (~ 100 microns) by Total Internal Reflection, such as when water droplets of different sizes form by condensation on a clean, low energy surface.
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