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Researchers at MIT and the University of Waterloo (Canada) created a high-power quantum cascade laser (QCL) capable of generating terahertz radiation outside of a laboratory environment. The laser has applications for skin cancer diagnostics and treatments, security, and gas detection, among other areas and industries.
Previously, terahertz radiation powerful enough for real-time imaging and quick spectral measurement was only possible at temperatures far below 200 K (−100° F), which requires bulky refrigeration equipment that precludes practical applications. The new device is operational at 250 K (−10° F), requiring only a compact portable cooler to achieve full functionality.
Scanning electron microscope…