通过原子上能级与光子频率带隙边缘的相对位置或者光子态密度，可以抑制或增强原子的自发辐射。
Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density.
能流和态密度的计算结果都表示十二重准晶光子晶体具有光子带隙。
The simulation of total energy flow and the density of states show that the dodecagonal QPC has photonic gap for TM polarized electromagnetic waves.
理论上研究发现，通过引入含不同密度分布的发光分子可以探测到光子晶体的全态密度的部分细节甚至全部信息。
It is found, theoretically, that using different number density distributions of luminescent molecules within the PC, one can probe the partial information or even all of the total DOS in the PC.
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