Tiny (image) University of Illinois College of Engineering Share Print E-Mail Caption This is an image of the Illinois "Block I" logo recorded by the plasmonic film. Each bar in the letter is approximately 6 micrometers. Credit Toussaint Research Group Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.