Construction of 3D Arrays of Cylindrically Hierarchical Structures with ZnO Nanorods Hydrothermally Synthesized on Optical Fiber Cores

Table 1

Quantitative characterization of the 3D arrays of cylindrically hierarchical structures.

	The 3D arrays of cylindrically hierarchical structures
	2 layers with nominal pitch 250 μm		3 layers with nominal pitch 375 μm
	1st layer	2nd layer	1st layer	2nd layer	3rd layer
Actual diameter (μm)
Actual pitch (μm)
Parallelism error (μm)