Acta Optica Sinica, Volume. 30, Issue 10, 2869(2010)
Self-Assembly of Colloidal Microspheres on the Cylindrical Substrate of Optical Fibers
A standard single-mode silica optical fiber is selected as an ideal cylindrical substrate for the three-dimensional colloidal crystal coated with silica microspheres through isothermal heating evaporation induced self-assembly at certain temperature and liquid surface dropping velocities. The optical fiber is vertically inserted into the silica microspheres colloidal solution at the center of the vial, and three-dimensional nanostructures colloidal crystal film is fabricated by capillary force. The silica spheres used have an average diameter of 390 nm. It takes only 12 h for the sphere particles to completely form crystal film. The photonic crystal cylindrical annulus is characterized by scanning electron microscopy (SEM). Scanning electron micrographs illustrate the [111] and [100]-oriented regions, and the two zones of regularly intercrossed pattern. Qualitative analysis and discussion are carried out for the the different alignment of crystal orientation of sililca micro-spheres and the cross pattern.
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Guo Wenhua, Wang Ming, Liu Qing, Xia Wei, Dai Lihua. Self-Assembly of Colloidal Microspheres on the Cylindrical Substrate of Optical Fibers[J]. Acta Optica Sinica, 2010, 30(10): 2869
Category: Fiber Optics and Optical Communications
Received: Dec. 14, 2009
Accepted: --
Published Online: Oct. 24, 2012
The Author Email: Wenhua Guo (guowhwuli@gmail.com)