Photonic crystal all-optical switching is realized in two-dimensional nonlinear photonic crystals made of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]. Organic polymer films are fabricated by a slow evaporation method. Under resonant excitation, the organic matrix provides very large third-order nonlinear optical susceptibility. An operating pump energy as low as 514 pJ/cm2 and a high switching efficiency of 70% are achieved for the photonic crystal optical switching. A switching time of 45.6 ps is maintained due to fast Forster transfer of excitons.
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机译：在由聚[2-甲氧基-5-（2-乙基己氧基）-1,4-亚苯基亚乙烯基]制成的二维非线性光子晶体中实现光子晶体全光切换。有机聚合物膜是通过缓慢蒸发法制备的。在共振激发下，有机基体提供了非常大的三阶非线性光学敏感性。对于光子晶体光开关，可实现低至514 pJ / cm 2 的工作泵浦能量和70％的高开关效率。由于激子的快速Forster转移，可保持45.6 ps的切换时间。
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