论文标题
简单的全光学方法，用于原位检测超低氨的氨
Simple all-optical method for in situ detection of ultralow amounts of ammonia
论文作者
论文摘要
作为氮化合物和肥料的关键前体，氨会以多种方式影响我们的生活。在环境监测和工业生产的过程控制中，对氨的快速和敏感检测至关重要。在这里，我们报告了一种新型和非扰动方法，该方法允许基于非接触式的，全面检测表面增强的拉曼信号的检测水平快速检测水平的氨。我们表明，这种简单且负担得起的方法可以通过高空间分辨率在某些感兴趣的区域进行氨探测，从而使原位和操作观测成为可能。
As a key precursor for nitrogenous compounds and fertilizer, ammonia affects our lives in numerous ways. Rapid and sensitive detection of ammonia is essential, both in environmental monitoring and in process control for industrial production. Here we report a novel and nonperturbative method that allows rapid detection of ammonia at detection levels of only a few thousand molecules, based on the non-contact, all-optical detection of surface-enhanced Raman signals. We show that this simple and affordable approach enables ammonia probing at selected regions of interest with high spatial resolution, making in situ and operando observations possible.
