The utility model discloses a time-resolved pumping detection system for ultra-short single pulse using a step window, which divides the laser output into pumping light and detecting light. The pumping light focuses on the non-linear sample through a lens to produce non-linearity; the detecting light transmits through the step window to detect the change of the non-linear sample induced by the pumping light, and is collected and transmitted by the image. The sensor receives the image; under the condition of detecting light with different time delays, the change of detecting light intensity emitted from the sample reflects the population of particles in the sample at different time, thus determining the absorption cross section and lifetime of each energy level; the measuring system operated according to the method of the utility model is very convenient to measure, without sample moving, only one laser pulse is needed. The time-resolved pump detection curve can be obtained, which is very simple compared with the traditional pump detection optical path. The time delay can be realized without the high-precision mobile platform in the traditional optical path, and only a delay ladder window is needed.
【技术实现步骤摘要】
利用阶梯窗口实现超短单脉冲时间分辨泵浦探测的系统
本技术属于非线性光子学材料和非线性光学信息处理
,具体涉及一种研究材料的非线性光学物理机制以及测量其光学物理参数的系统。
技术介绍
随着光通信和光信息处理等领域技术的飞速发展,非线性光学材料的研究日益重要。光学逻辑、光学记忆、光三极管、光开关和相位复共轭等功能的实现主要依赖于非线性光学材料的研究进展。光学非线性测量技术是研究非线性光学材料的关键技术之一,其中弄清材料的光学非线性机制,如何准确的确定材料重要的物理参量对于如何应用材料是非常重要的。Z扫描方法(MansoorSheik-Bahae,AliA.Said,Tai-HuiWei,DavidJ.Hagan,E.W.VanStryland.“Sensitivemeasurementofopticalnonlinearitiesusingasinglebeam”,IEEEJ.QuantumElect,26,760-769(1990))是目前最常用的单光束测量材料光学非线性的方法,此方法是在光束畸变测量方法的基础上提出的,其优点是光路简单,处理方法简单,测量精度 ...
【技术保护点】
1.利用阶梯窗口实现超短单脉冲时间分辨泵浦探测的系统,包括激光器、阶梯窗口、分束器、探测光路和泵浦光路、图像采集传感器;所述的阶梯窗口为表面具有阶梯形状分布的透镜;所述的激光器发出的光经所述分束器后被分成所述的探测光路和泵浦光路;所述的泵浦光路聚焦于待测样品上,探测光路中放置阶梯窗口,探测光路透射过所述阶梯窗口入射至所述待测样品,图像采集传感器放置在待测样品附近接收从样品出射的光斑图像。
【技术特征摘要】
2018.03.09 CN 20182032848841.利用阶梯窗口实现超短单脉冲时间分辨泵浦探测的系统,包括激光器、阶梯窗口、分束器、探测光路和泵浦光路、图像采集传感器;所述的阶梯窗口为表面...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。