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基于量子力学理论和D2的零点振动能,计算出了D2的低模式能量,分析判断出了发生振转能量跃迁概率最大模式.利用自主研制的低温平面冷冻靶系统和低温红外测量系统,制备出了光滑、均匀、透光性好的平面固体氘膜,测得了其红外吸收谱.其中吸收明显的峰位主要由于Q1(0)+S0(0),Q1(0)+S0(1),Q1(0)+S0(0)+S0(1)振动、转动模式构成.实验结果与理论计算结果一致.
Based on the quantum mechanics theory and the zero-point vibration energy of D2, the low-mode energy of D2 was calculated, and the maximum probability of the transition of the energy transition was analyzed.The low-temperature planar cryogenic target system and the low-temperature infrared measurement system developed by ourselves were used to prepare The infrared absorption spectrum of the planar solid deuterium membrane with smooth, uniform and good transparency was obtained, and the obvious absorption peak was mainly due to the peak absorption of Q1 (0) + S0 (0), Q1 (0) + S0 Q1 (0) + S0 (0) + S0 (1) vibration and rotation mode.The experimental results are consistent with the theoretical calculation results.