中文摘要：

我们理论上在一个 M 类型五水平的原子系统调查电磁地导致的栅栏的现象。一块弱地能有效地用联合调整能驱散的阶段的地，和不同深度的一个站的波浪被使衍射进高顺序的方向，这被发现衍射光进不同订单。当阶段调整深度被接近到订单时，并且，第一 -- ，秒顺序和第三顺序的衍射紧张分别地到达最大值。因此，我们能利用阶段调整控制分散进要求的高订单的探查光。

英文摘要：

We theoretically investigate the phenomena of electromagnetically induced grating in an M-type five-level atomic system. It is found that a weak field can be effectively diffracted into high-order directions using a standing wave coupling field, and different depths of the phase modulation can disperse the diffraction light into different orders. When the phase modulation depth is approximated to the orders of π, 2π and 3π, the first-, second- and third-order diffraction intensity reach the maximum, respectively. Thus we can take advantage of the phase modulation to control the probe light dispersing into the required high orders.