Laser Gas Detector，high sensitivity

Researchers Develop High-Sensitivity Laser Gas Detector

Scientists from the University of California, Berkeley have developed a new laser-based gas detector that is capable of detecting trace amounts of gases with high sensitivity. The device uses a technique called cavity-enhanced absorption spectroscopy (CEAS) to detect gases such as methane, carbon dioxide, and other volatile organic compounds. Unlike traditional gas detectors that rely on bulky, expensive equipment, the new device is compact and portable, making it ideal for use in field applications. The CEAS technique uses a laser beam to probe a gas sample contained in a high-quality optical cavity. The light is then absorbed by the gas molecules, creating a distinct fingerprint that can be measured and analyzed. The researchers say the new gas detector has many potential applications, from environmental monitoring to industrial process control. For example, it could be used to detect leaks in natural gas pipelines or to monitor emissions from factories and power plants. It could also be used in medical applications, such as breath analysis for disease diagnosis. The device has already undergone successful testing in laboratory and field settings, and the researchers say they are now working to commercialize the technology. They believe that the device could provide a more cost-effective...