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所在平台: Udemy |
课程主页: https://www.udemy.com/course/physicslaser-stimulated-emission-of-radiation/
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**课程名称:** 物理学 - 激光与受激发射 **课程概述:** 本课程是专为本科生设计的独特激光物理入门课程，系统讲解激光器的基本结构和工作原理。课程内容被分解成多个易于理解的部分。 首先，课程将重点介绍激光的特性，帮助学习者区分激光与普通光的区别。 接着，课程深入探讨辐射与物质的相互作用，详细解释吸收、自发辐射和受激辐射。通过这部分内容，学习者将清晰地理解辐射与物质的能量交换过程。 随后，课程将阐述激光器的工作原理，包括理解为什么实现粒子数反转至关重要，以及为什么在有源介质中设置光学谐振腔。 完成本课程后，学习者将能够构建三能级激光器的概念，并解答关于“为什么两能级激光器不可行”、“为什么粒子数反转在激光器中如此重要”等关键问题。最后，学习者还将掌握四能级激光器的构建方法及其在实际中的应用。
This course is the unique form of Laser Physics designed for undergraduate students. It covers the basic construction & working principle of Laser.The video lectures are split into multiple parts so you can easily develop the concepts. Particularly to understand Laser, this lecture is categorized into sections for your own convenience. First it is important to understand the characteristics of Laser which will help you distinguish it from the ordinary light. The other part is based on radiation & matter which in turn is the significant topic of this course. It consists of detailed explanation on absorption, spontaneous & stimulated emission of radiation. You will clearly observe the interaction of radiation & matter in this part. Then, to understand the basic principle that how it works, you will find in the next part that why population inversion is important to achieve & why optical resonators are placed for an active medium. Upon the end of this course, you will be able to build the concept of three level Laser system & you will find answers to your desired problems such as why two level Laser is not possible, why population inversion is so important in Laser. Also, you will be able to construct a four level Laser system & perform its practical implementation.
