Figure 5
**The windows on hollow sphere surface. (a)** The material deposition schematic on the edge of PS array; **(b)** the schematic of spherical crown. *R*, *r*, and *θ* are the sphere radius, circular radius on the top surface of spherical crown, and the angle related to *r* and *R*, respectively. **(c)** The total window size on hollow sphere surface varied as a function of the angle *θ*. Mode 1 represents the hollow sphere obtained through reshaping the nanoshell, modes 2 and 3 represent the hollow sphere with *f*
_{top} = 30[0°, 0°]/*f*
_{bottom} = 30[*θ*, 0°] (mode 2) and *f*
_{top} = 70[0°, 0°]/*f*
_{bottom} = 30[80°, 30°] + 30[*θ*, 210°] (mode 3).