[摘要]：A theoretical model for calculating the refractive index profile of gradient refractive index rod lens is established. Gradient refractive index rod lenses are prepared using double ion exchange processes, and their optical characteristics have been evaluated for the first time to the best of our best knowledge. The theoretical and the experimental results show that they agree well with each other. Moreover, the refractive index profile and the optical performance of gradient refractive index rod lens in the two-step ion exchange process are superior to them in the one-step ion exchange process. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3598080]
