تفاعل شعاع الليزر مع وسط مختلف المناحي
Abstract
الليزر باعتباره منبعاً قوياً للأشعة المترابطة، جعل من الممكن دراسة التفاعلات اللاخطية للأشعة الضوئية مع الذرات والجزئيات، مما نتج عن ذلك ظهور مجالات جديدة ومتعددة للاختبارات العلمية، مثل الضوء اللاخطي وغيره من مجالات العلوم الأخرى.
نقوم في هذا البحث بدراسة نظرية للظواهر اللاخطية العديدة التي تنتج عن تفاعل شعاع الليزر مع وسط مختلف المناحي خصوصاً الاستقطاب اللاخطي والظواهر الكهرضوئية اللاخطية الأخرى بالشكل التنسوري:
وحساب الاستقطاب الثابت ، الاستقطابI التوافقية ، الاستقطاب II التوافقية والاستقطاب III التوافقية .
Laser, being a very powerful source of the intensity connected beams, has made it possible to study the nonlinear interactions of the beam rays with atoms and molecules. This gave rise to new and numerous fields for the scientific experiments, such as the nonlinear optics, besides other sciences.
In this study we discuss, theoretically, the numerous nonlinear phenomena which are produced the interaction of laser ray with a center anisotropic, especially the nonlinear polarization and other nonlinear electro-optical effects in tensory form:
-I harmonic polarization and calculate constant polarization
-, and III harmonic polarization , II harmonic polarization
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