Ye Chunfang, McLeod Robert R
Department of Electrical and Computer Engineering, University of Colorado, Boulder, CO 80309, USA.
Opt Lett. 2008 Nov 15;33(22):2575-7. doi: 10.1364/ol.33.002575.
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.
我们介绍了一种通过使用低功率连续波激光曝光扩散驱动的光聚合物来制造梯度折射率（GRIN）透镜和GRIN透镜阵列的新方法。通过改变激光束的大小、功率和曝光时间，可以控制GRIN透镜的折射率分布。结合光聚合物的自显影特性，这使得能够快速“按需”打印任意微光学元件。我们还介绍了一种新型扫描相显微镜，它可以方便地集成到透镜曝光硬件中，提供精确的过程监测。
