光子晶体是近十几年来倍受世人关注的一个新兴的研究领域，光子带隙晶体使人们可以有效地控制和操纵光子。

Photonic crystals is a new study field which is strongly attended in the recent tens 'years. Using photonic band gap crystals the photon can be controlled and manipulated effectively.

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研究了光子晶体多模波导在非光子带隙区光场的传输特性。

The properties of the propagating field in multimode photonic crystal waveguides (PCWs) exhibiting no photonic band gaps (PBGs) are investigated.

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其原因是硼元素的掺入促进了金刚石单晶的(111)晶面生长，使受主能级提高，晶体的带隙变窄，载流子浓度提高。

It is indicated that the boron doping promotes the growth of (111) face of the diamonds, enhances acceptor level, narrow 's band gap and increases carrier concentration correspondingly.

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