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First room-temperature semiconductor source of coherent terahertz radiation demonstrated

Engineers and applied physicists from Harvard University have demonstrated the first room-temperature electrically-pumped semiconductor source of coherent Terahertz (THz) radiation, also known as T-rays. The breakthrough in laser technology, based upon commercially available nanotechnology, has the potential to become a standard Terahertz source to support applications ranging from security screening to chemical sensing.

The work was spearheaded by research associate Mikhail Belkin and SPIE Member Federico Capasso, Robert L. Wallace Professor of Applied Physics and Vinton Hayes Senior Research Fellow in Electrical Engineering, both of Harvard's School of Engineering and Applied Sciences. The researchers have filed for U.S. patents covering the novel device.

Full story from Science Daily.