The P-branch and R -branch emission spectral lines in the d1Σ+–A3Σ0- system of NbN

• High-lying values of spectral lines of rovibrational transition are important.
• Those values are difficult to obtain experimentally or quantum mechanically.
• Analytical formula which are proposed to predict the values in our previous work.
• This study generates correct data of NbN.
• Supplies a reliable and economical physical method theoretically.

The P and R-branch spectral lines of high-lying rotational quantum states of (0, 0), (1, 1) bands in d1Σ+-A3Σ0- electronic transition of NbN are obtained in this work by using the analytical formula proposed recently by Sun et al. The formula have generated unknown P and R-branch emission spectral lines up to J = 80 those may not be available experimentally for these bands of NbN molecule.

Fig. 1. Experimental (“∗”) and theoretical (“○”) transition line of P-branch emission spectra of (0, 0) band of d1Σ+–A3Σ0- system of NbN.Figure optionsDownload as PowerPoint slide