纳米金属结构调控径向偏振半导体激光器的研究

来源 :2010(第三届)中国微纳电子技术交流与学术研讨会 | 被引量 : 0次 | 上传用户:zichou133
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  偏振状态作为光源的重要属性,在光传输以及光与物质相互作用过程中都有着至关重要的影响。在广泛的应用领域里,研究人员已经对偏振状态的影响作了深入研究。然而,以前的研究主要是集中在偏振状态空间一致的条件(线性偏振,圆偏振,椭圆偏振)。近年来,偏振状态空间异性的光源(径向偏振和角向偏振)吸引了越来越多的关注。而径向偏振光束在高密度存储,高分辨率成像,生物探测,光学显微镜,激光加工以及表面等离子激元等领域都有着广泛的应用。径向偏振光的产生方法主要基于固体激光器和光纤激光器,这些方法都需要复杂的、体积较大的光学器件回路,大大限制了它的应用。我们提出将金属纳米结构和垂直腔面发射激光器相结合,通过金属纳米结构激发的表面等离子激元效应的调制实现径向偏振光束输出。该设计具有结构紧凑,易于集成等特点。可以预见这种集成化的径向偏振光束在光子集成,光电集成,生物检测芯片以及等离子激元等领域将会取得广泛的应用。
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