Figure 115.

SEM image of fabricated microstructures with I819 as 2PI. The laser intensity was increased from 16 to 32 mW in 4 mW steps (left to right). [216] Adapted with permission from Ref. [216] ©The Optical Society.

SEM image of fabricated microstructures with I819 as 2PI. The laser intensity was increased from 16 to 32 mW in 4 mW steps (left to right). [216] Adapted with permission from Ref. [216] ©The Optical Society.