Nanophotonic Frequency Converter (image) National Institute of Standards and Technology (NIST) Share Print E-Mail Caption False-colored scanning electron micrograph of the nanophotonic frequency converter, consisting of a ring-shaped resonator (shaded blue) into which light is injected using a waveguide (shaded red). The input signal, depicted as a purple arrow, is converted to a new frequency (blue arrow) through the application of two pump lasers (light and dark red arrows). Credit K. Srinivasan et al./NIST Usage Restrictions Please credit K. Srinivasan et al./NIST. 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.