出版者:The Optical Society of Japan, co-published with Springer-Verlag GmbH
ISSN:1349-9432
卷排序:23
文摘
This paper outlines an improved technique for profiling the refractive index of Graded-index (GRIN) lenses based on the measurements obtained from a reflectivity image. Reflective cross-sectional image of the GRIN lens were compared with a reflectance reference target under illumination at small incidence angles to obtain the full-field refractive index distribution of the GRIN lens quickly and easily.