中国科学院长春应用化学所研制成功一种在大气中传输衰减低、对人眼安全、对环境和气温变化不敏感,可广泛应用于激光测距、激光雷达、激光通信和激光医疗等高技术领域的“新波段激光晶体”。 目前,在激光晶体中掺钕元素用的较多。但由于其所发激光在大气中衰减高,对人眼危 Changchun Institute of Applied Chemistry, Chinese Academy of Sciences has successfully developed a transmission attenuation in the atmosphere low, the human eye is safe, insensitive to environmental and temperature changes, can be widely used in laser ranging, laser radar, laser communications and laser medical and other high-tech fields The “new band laser crystal.” At present, Nd: YAG laser is more used in laser crystal. However, due to the emission of its high attenuation in the atmosphere, dangerous to the human eye