Colloidal photonic crystal cladded optical fibers: Towards a new type of photonic band gap fiber.
A facile approach of fabricating a new type of hollow photonic band gap fibers is proposed. Templates for generating such fibers are demonstrated by a complete and uniform coating of a standard silica optical fiber (125 mum diameter) with a three-dimensional colloidal photonic crystal through isothermal heating evaporation induced self-assembly. The photonic crystal cylindrical annulus is characterized by optical and scanning electron microscopy, and is found to yield a 1.4-mum stop band by optical reflection and transmission spectroscopy. The results also demonstrate a practical means of enveloping macro- or micro-curved surfaces with three-dimensional photonic crystals, a task that is geometrically challenging by other photonic crystal fabrication methods.
Li
Jianzhao
J
Heman
Peter
P
Valdivia
Christopher
C
Kitaev
Vladimir
V
Ozin
Geoffrey
G