Bending Light More Efficiently (IMAGE)

North Carolina State University

Bending Light More Efficiently

Caption

This photo shows a one-inch diameter Bragg polarization grating diffracts white light from an LED flashlight onto a screen placed nearby. Even though the difference between the light's input and output direction is very large, the grating is highly efficient for a wide set of input angles. The extremely large color separation occurs because the grating structure has a nanoscale periodic structure smaller than the wavelength of visible light. A paper on the work was published May 8, 2018, in Scientific Reports.

Credit

Michael Escuti, NC State University

Usage Restrictions

Photo credit must be given.

License

Licensed content

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.