建立了用染料激光增益增强弱拉曼模式的受激拉曼散射(SRS)的经典理论,详细给出了拉曼增益gR,染料激光增益gD和总损耗α的表达式,并在其推导过程中对经典理论作了修正,最后得到了激光增益和受激拉曼增益可以共同使SRS强度的指数部分快速增长的结果,可以很好地解释观察到的实验现象,并为其提供理论依据.
The theory of enhancement of weak-gain Raman modes of stimulated Raman scattering (SRS) by dyelasing gain is established in this paper. With the classical theory of electromagnetic field, the Raman gain gR' dye-lasing gain gn and total loss a are calculated in detail and the expression of each quantity is also presented. In the process of giving out riD, the result of classical theory is amended. Finally, the explicit expression which indicates that the SRS intensity is exponentially increased by lasing gain is obtained. Furthermore the observed experimental phenomenon is explained well according to this theory.