Ramanspectroscopy works by shining a laser light onto a molecule and then collecting and analysing the wavelength and intensity of the resulting scattered light.
拉曼光谱的工作原理是使用一束激光照射到原子上，然后收集并分析产生的散射光的波长和密度。
2
In fact, a device using "surface-enhanced Ramanspectroscopy" can detect traces of less than one part per billion.
实际上，利用“表面增强拉曼光谱”的设备能够检测到十亿分之一的痕量物质。
3
The team put a single graphene sheet between two layers of polymer and used Ramanspectroscopy to measure how the carbon bonds responded when the graphene was stretched.