High-Q Microresonators on a Silicon Wafer (IMAGE) Washington University in St. Louis Caption The high-Q microresonators could be mass produced by the hundreds of thousands on silicon wafers. Each torus is 20 to 30 micrometers across, one-tenth the size of the period at the end of this sentence. In this image, two particles (bright spots) have landed on the closest microresonator and are acting as scattering centers that disturb the light waves in the torus. This allows them to be detected and measured. Credit Image by Jiangang Zhu and Jingyang Gan/WUSTL Usage Restrictions Please credit the image if you pick it up. 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.