When light is scattered, reduced in its intensities, thus reduce their power, but still their wavelength is able to vibrate polystyrene molecules. Thus increase in localized energy that later induced Polystyrene molecules to restructuring.

The first to be released to the air is Hydrogen where the breaking of Hydrogen bond to Polystyrene increasing in uptake of Oxygen. Prolong irradiation, later, with more Hydrogen been breaking-up with carbon atom, either at the back bone of Polystyrene or bezene rings, created more radical site for POlystyrene, thuse increase in chemical reaction, where scissoring and bonding, are been created simultaneously. Overexposure of Laser Irraditon, thus more energy absorbed, which forcing more radicals been created, but the PS molecules are now shrunk to smaller antitites, which they will evolutionary move from graphite to gaphene-to carbon-like diamond. These observation is still under much investigation by our research group...where doping the PS with nanomaterials, enhancing the fabrication of Diamond-like carbon. Can anyone give other explanation? Here are the papers for you to start to speculate of our research outcome.