Ultrafast three-dimensional tunable photonic crystal

被引:63
作者
Hu, XY
Zhang, Q
Liu, YH
Cheng, BY
Zhang, DZ
机构
[1] Chinese Acad Sci, Inst Phys, Opt Phys Lab, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
关键词
D O I
10.1063/1.1615309
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate a continuously tunable photonic crystal with several picoseconds response, which is fabricated through a self-assembly formation method of polystyrene spheres. The large optical nonlinearity originates from the delocalization of the conjugated pi-electron along polymer chains. The pump and probe scheme is adopted to measure the transmission changes based on the optical Kerr effect. The dynamic shift of the photonic band gap is studied. It is found that the band gap shifts about 13 nm when the input peak intensity is 40.4 GW/cm(2), which is in agreement with the theoretical predictions. (C) 2003 American Institute of Physics.
引用
收藏
页码:2518 / 2520
页数:3
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