Ultra-fast all-optical switching in MEH-PPV photonic crystals with resonantly enhanced nonlinearity

作者：Jiang P; Hu X; Zhang J; Yang H; Gong Q^*

来源：Applied Physics B: Lasers and Optics , 2010, 99(1-2): 187-190.

DOI：10.1007/s00340-009-3795-2

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/cm(2) 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.

• 出版日期2010-4
• 单位北京大学