中红外Fe:ZnSe激光技术最新研究进展  

Research progress on mid-IR Fe:ZnSe laser technology

作　　者：柯常军[1] 孔心怡[1,2] 王然[1] 李志永[1] 

机构地区：[1]中国科学院电子学研究所,北京100190 [2]中国科学院大学,北京100049

出　　处：《红外与激光工程》2016年第3期136-142,共7页Infrared and Laser Engineering

基　　金：国家自然科学基金(60708005;61178029;61575198)

摘　　要：3-5μm中红外激光处于大气传输窗口,在分子光谱学、环境遥感、工业加工、空间通讯、光电对抗等领域有重要的应用前景。过渡金属掺杂II-VI族硫化物晶体可以直接实现中红外激光输出,是最有前途的技术途径之一。具有优良物理特性和光谱特性的Fe：ZnSe晶体是高效、宽带可调谐中红外激光介质的有力竞争者,介绍并分析了Fe：ZnSe晶体的光谱特性及其制备方法,综合评述了Fe：ZnSe激光技术的发展历程和最新研究进展,指出制备高光学质量的Fe：ZnSe晶体和研制3μm波段高效、高能窄脉冲泵浦源是发展实用室温Fe：ZnSe激光器当前面临的挑战。并对实现室温高能、高功率Fe：ZnSe激光的关键问题进行了讨论。Mid-IR laser in 3-5 μm wavelength region is in the range of atmospheric transmission window, it is in great demand for a variety of applications including molecular spectroscopy, remote sensing for environmental monitoring, industrial process, free space communication, optoelectronic countermeasures. One of the most promising approaches to reach mid-IR spectral range is based on direct lasing of Transition Metal（TM） doped II-VI chalcogenide crystals. Fe2 ＋ions doped ZnSe laser crystals offer a special blend of physical and spectroscopic parameters that make them the gain media of choice for cost effective broadly tunable lasing in Mid-IR wavelength region. Spectroscopic properties and fabrication methods of Fe：ZnSe crystal were introduced, the development history and technology status of Fe：ZnSe laser were summarized. There are still several challenges to be overcome in the development of affordable room temperature Fe：ZnSe laser including fabrication of high optical quality gain elements and developing high efficient, high energy short pulse pump sources in 3 μm wavelength region. The key problems developing high energy, high power Fe：ZnSe laser at room temperature were analyzed.

关 键 词：Fe:ZnSe晶体 光谱特性 宽带调谐 中红外激光 HF激光 

分 类 号：TN248.2[电子电信—物理电子学]