nanoworker 2007-10-01 20:41
可调控光子晶体最新进展
[align=center][img]http://faculty.ucr.edu/~yadongy/Cover-Tunable.jpg.jpg[/img][/align][font=Times New Roman] [/font][font=Arial]Ge, J.; Hu, Y. and Yin, Y."Highly Tunable Superparamagnetic Colloidal Photonic Crystals", [i]Angew. Chem. Int. Ed.[/i] [b]2007[/b], [i]46[/i], 7428-7431[/font]
[font=Arial]Yin and co-workers have recently demonstrated the fabrication of colloidal photonic crystals with magnetically
tunable stop bands covering [color=red]the entire visible spectrum:o [/color]. In their report, uniform clusters of superparamagnetic Fe3O4 nanocrystals were used as building blocks for crystallization in the presence of an external magnet. The stop band position could be successfully tuned from 400 to 750 nm as a function of the distance between an external magnet and the suspension containing the building blocks during their crystallization. The optical response of these photonic crystals relative to the external magnetic field was rapid and fully reversible.:victory: [/font]
hjlyyc 2007-11-05 15:55
回复 1# 的帖子
很老的主题，同样能够发现比较好的结果！这个结果应该让我们意识到不单纯是那些所谓的新的前沿的课题才能出现突出的成绩！
很好的工作！