Figure 3

SEM micrographs of the structures synthesized from rice husks by 1,300 consecutive laser pulses. The laser pulse energies were (a) 0.19 and (b) 0.38 mJ.
SEM micrographs of the structures synthesized from rice husks by 1,300 consecutive laser pulses. The laser pulse energies were (a) 0.19 and (b) 0.38 mJ.