The stimulated Raman adiabatic passage (STIRAP) procedure is a robust and complete population transfer method which has various applications in chemistry and atomic physics. The bright-state STIRAP (b-STIRAP) is an alternative population transfer process with an intuitive pulse sequence. The simultaneous use of both STIRAP and b-STIRAP is beneficial in quantum manipulation. Adjusting the system parameters in both processes can be useful for the enhancement of transfer efficiency. Hence, we have studied the effects of single-photon detuning, transition time, pulse width, and pulse delay parameters on the population transfer via STIRAP and b-STIRAP techniques. Moreover, the impact of the field amplitude is investigated and analyzed in the b-STIRAP method. It is shown that the robustness of the complete transition can be improved by tuning the field amplitude in the single-photon resonance condition.

受激拉曼绝热通道（STIRAP）程序是一种健壮而完整的种群转移方法，在化学和原子物理学中具有多种应用。亮态STIRAP（b-STIRAP）是具有直观脉冲序列的替代种群转移过程。同时使用STIRAP和b-STIRAP在量子操作中是有益的。在两个过程中调整系统参数对于提高传输效率很有用。因此，我们研究了单光子失谐，跃迁时间，脉冲宽度和脉冲延迟参数对通过STIRAP和b-STIRAP技术进行的种群转移的影响。此外，在b-STIRAP方法中研究和分析了场振幅的影响。