We introduce a new method to make gradient index (GRIN) lenses and GRIN lens arrays by exposing diffusion-driven photopolymers using a low-power CW laser. By changing the size and power of the laser beam and the exposure time the index profile of the GRIN lens can be controlled. Combined with the self-developing nature of the photopolymer, this enables rapid “on-demand” printing of arbitrary micro-optics. We also introduce a new form of scanning phase microscopy that is conveniently integrated into the lens exposure hardware, providing accurate process monitoring.
© 2008 Optical Society of America
Original Manuscript: July 28, 2008
Revised Manuscript: October 1, 2008
Manuscript Accepted: October 2, 2008
Published: November 5, 2008
Chunfang Ye and Robert R. McLeod, "GRIN lens and lens array fabrication with diffusion-driven photopolymer," Opt. Lett. 33, 2575-2577 (2008)