能量积聚（Ｅｎｅｒｇｙ ｐｏｏｌｉｎｇ，下面简称 ＥＰ）是当激发态的粒子相互碰撞的时候，发生能量碰撞转移，一个激发态粒子到达更高能级，而另一个激发态回到基态．根据能量守恒原理，更高激发态的能级应该在二倍于产生它的激发态的能级的附近，或者说近似等于产生它的两 Energy pooling (EP) is the collision of energy-excited particles when they collide with each other. One excited-state particle reaches a higher energy level and the other returns to the ground state. According to the principle of conservation of energy, the energy level of a higher excited state should be about twice as high as the energy level that generated its excited state, or approximately equal to two