美国最近研制成功的扫描远红外区激光器,科学家们称赞这是开拓出新的研究领域的突破。这种激光器称做自由电子激光器(Free Electron Laser,简称FEL),不同于现有的激光扫描器,可调到各种频率,捕捉过去从未见过的分子和原子运动,并且能阅读那些活动,差不多象比较简单的激光装置阅读杂货包装 Recently, the United States has successfully developed a scanning far-infrared laser, and scientists praised it as a breakthrough in opening up new fields of research. Called a Free Electron Laser (FEL), this type of laser, unlike existing laser scanners, can be tuned to a variety of frequencies to capture molecular and atomic motions never seen before and to read those activities , Almost like a simple laser device reading grocery packaging