美国专家最近研制出一种能发射多种波长激光的“自由电子”激光器。这种装置能应用在军事和民用科技领域。美国海军研究局和“托马斯·杰斐逊”国家加速器实验室的专家通过加速使电子获得了极高的能量 ,并在这种高能电子环境中开发出了激光。研究人员将其称为“自由电子”激光? U.S. experts recently developed a “free-electron” laser capable of emitting multiple wavelengths of laser light. This device can be used in military and civilian science and technology. Experts at the U.S. Naval Research Agency and the National Accelerator Laboratory in Thomas Jefferson accelerated the electron to obtain extremely high energies and developed lasers in this high-energy electronic environment. Researchers call it “free electron” laser?