Researchers used a special laser to study how different factors affect the efficiency and stability of a type of light scattering called stimulated Raman scattering in gases like D2 and D2 mixed with helium. They found that adjusting the pressure of the gas and adding helium can increase the efficiency of the process without sacrificing stability. The best energy conversion efficiency reached 22.1% in D2 mixed with helium. This information can help optimize the efficiency and stability of this type of light scattering.