光是电磁波，发光即产生电磁波或光辐射，发光物理是发光材料创新设计和应用的理论基础. 本文从玻尔假说出发，通过分析真空中和非真空中的孤立原子的能级和各类跃迁阐述发光的基本原理，通过分析非孤立原子激发态的能量传递阐述量子剪裁发光和上转换发光物理机制，通过介绍与发光有关的诺贝尔奖让学生了解该领域的最新进展，实现大学物理教学中从基础到前沿的跨越.

Light is an electronicmagnific radiation in the range of violet to infrared.Luminescence is light radiation except thermal radiation.Luminescence is the theoretical fundation for design luminescent materials and its applications.In this work，based on Bohr hypothesis，energy levels and transition of isolated atom in vacuum and inantivacuum are analysized and the luminescent mechanism is induced.Quantum cutting and up-conversion lumines cence of non-isolated atoms are investigated by energy transfer of atom at excited state.And it is found that the atomic excieted state energy transfer is a key for understanding luminescence.The students follow the advance of lumines cent physics by introducing Nobel prize that is relative with luminescence.We get overstep from fundament knowl edge to science border in the college physics.