Skifstad J G, Chao C M
Appl Opt. 1975 Jul 1;14(7):1713-8. doi: 10.1364/AO.14.001713.
Rotational relaxation effects in a cw chemical laser amplifier or a line-selected oscillator are examined in terms of a simple analytical model. Three rotational levels in each vibrational level of the lasing transitionare taken to have finite rotational relaxation rates. The results.indicate the effects are likely to be significant, lowering the available power and leading to an optimum level of the line intensity for maximum power output, apart from consideration of optical losses at mirrors, windows, etc. While the model accounts for Deltaj = +/-1 transitions only, the collisional transition probability was augmented in the computations in an attempt to provide high estimates for the rotational relaxation rates, including factors such as Deltaj > 1 transitions.
通过一个简单的分析模型研究了连续波化学激光放大器或选线振荡器中的转动弛豫效应。激光跃迁的每个振动能级中的三个转动能级被认为具有有限的转动弛豫速率。结果表明，除了考虑镜子、窗口等的光学损耗外，这些效应可能很显著，会降低可用功率，并导致最大功率输出时谱线强度的最佳水平。虽然该模型仅考虑了Δj = ±1跃迁，但在计算中增加了碰撞跃迁概率，以便对转动弛豫速率进行高估，包括诸如Δj > 1跃迁等因素。
