非线性光学现象 meaning in Chinese

nonlinear optical phenomena
nonlinear optical phenomenon

Recently , the scientists go deep into the study on double - clad pumped fiber laser in both theory and experiment , such as high output power , q - switching , mode - locking , cw tuning and nonlinear optics
双包层泵浦光纤激光器的大功率输出、调q 、锁模、调谐、非线性光学现象等理论和实验研究都取得了长足进展，成为国际上的热点研究领域。
The investigation of nonlinear optics not only include the finding of nonlinear phenomena effects , the study of their mechanism and rules , the development of new nonlinear optical technology and the finding of new materials , but also include applications of nonlinear optical effects and techniques in every related field
非线性光学的主要研究不但在于非线性光学现象与效应的发现及它们产生的机理和规律性的研究、非线性光学新技术的发展和新材料的发现，而且注重非线性光学效应与技术在各有关领域中的应用。