The Raman effect originates from molecular vibration (and lattice vibration) and rotation, so knowledge of molecular vibration energy level (lattice vibration energy level) and rotation energy level structure can be obtained from Raman spectroscopy. What we have demonstrated is the successful use of a portable Raman spectrometer for non-destructive, real-time monitoring of polymer samples. Office Hanger ,Office Coat Hanger,Office Clothes Hanger,Office Clothes Rack Feat Top International(China) CO.,LTD , https://www.feattop.com