Development of a high power mid infrared laser and study on the mechanism of excited state proton/hydrogen transfer reaction

研制了一种适用于超音速喷气红外光谱的中红外可调谐相干红外光源。该光源可连续调谐1000-2200 cm~(-1)cm~(-1)，输出功率为0.5mJ/Pulse，能量分辨率为~lt；0.4 cm~(-1)&gt；，这是对超音速冷却物质进行双共振光谱的必要条件。将MIR激光应用于苯酚-氨原子团簇、水杨酸甲酯等几个反应体系的骨架振动的红外光谱研究，使人们对它们的质子转移反应机理有了新的认识，这些机理仅从没有信息的广谱特征中推断出来。

I developed new tunable coherent infrared source in the mid-infrared (MIR) region that is applicable to supersonic jet infrared spectroscopies. The light source can provides continuous tunability covering 1000-2200cm^<-1> with the output of >0.5mJ/pulse and the energy resolution of <0.4cm^<-1>, which are necessary conditions to perform double resonance spectroscopies on supersonically cooled species.Applications of the MIR laser to the infrared spectroscopy of the skeletal vibrations of several reactive systems, such as phenol-ammonia clusters, methylsalicylate shed new insight into their proton transfer reaction mechanisms that have been inferred only from uninformative broad spectroscopic features.