Time-resolved infrared emission spectra of atomic helium have been measured using a high-resolution Fourier transform spectrometer in the spectral range of 700–15000 cm${}^{-1}$ with a maximum resolution of 0.01 cm${}^{-1}$. A total of 74 spectral lines have been observed, of which 47 lines are detected for the first time. Most of the observed transitions are from highly excited levels ($n=$ 8, 7 and 6). The time profiles of the spectral line’s emission intensities observed under the current experimental conditions have been plotted, and the decay times have been obtained. The level energy values are extracted from the list of spectral lines, and their consistency is justified by the obtained ionization potential of the He atom and the dipole polarizability of He${}^{+}$.

使用高分辨率傅立叶变换光谱仪在700–15000 cm的光谱范围内测量了原子氦的时间分辨红外发射光谱${}^{-\mathrm{1个}}$ 最大分辨率为0.01厘米${}^{-\mathrm{1个}}$。总共观察到了74条谱线，其中有47条谱线是首次被检测到。观察到的大多数转变都来自高激发能级（$ñ=$8、7和6）。绘制了在当前实验条件下观察到的谱线发射强度的时间曲线，并获得了衰减时间。从谱线列表中提取能级值，并通过获得的He原子电离势和He的偶极极化率证明其一致性${}^{+}$。