Single-Walled Carbon Nanotube Photodetector (image) The Optical Society Caption This schematic shows the design of single-walled carbon nanotube photodetector, which provides a more efficient method of collecting infrared radiation without relying on cryogenics for cooling. Credit Image courtesy Sheng Wang, Peking University. Usage Restrictions None 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.