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在光电对抗、激光制导、环境监测等需求的牵引下,中红外激光系统的应用日益广泛,中红外光学元件的吸收特性备受关注。尤其在中红外强激光系统中,强光元件的吸收性能直接关系到整个激光系统的可靠性。目前中红外光学元件的吸收率已降至10-6量级,难以准确表征其二维吸收分布。2016年国防科学技术大学光电学院与合肥知常光电科技有限公司结合自身优势,分别突破了高品质中红外激光器技术和微弱光热信号检测处理技术,基于光热测量法合作研发了中红外波段的光学元件微弱吸
Due to the demand of optoelectronic countermeasures, laser guidance and environmental monitoring, the application of mid-infrared laser system is becoming more and more widespread. The absorption characteristics of mid-infrared optical elements have attracted much attention. Especially in the mid-infrared laser system, the absorption of the strong light element is directly related to the reliability of the laser system. At present, the absorption rate of the mid-infrared optical element has been reduced to the order of 10-6, which makes it difficult to accurately characterize the two-dimensional absorption distribution. In 2016, the Institute of Optics and Electronics of National Defense University of Science and Technology and Hefei Zhichuang Optoelectronics Technology Co., Ltd. combined their own advantages to break through high-quality mid-infrared laser technology and faint light and heat signal detection and processing technologies respectively. Based on the photothermal measurement method, they jointly developed the mid-infrared band Optical components weak suction