Full-field measurement of surface reflectivity using a microscopy for refractive index profiling of GRIN lenses

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• 作者：Chun-Jen Weng ; Chih-Yen Chen ; Chi-Hung Hwang ; Da-Ren Liu
• 关键词：GRIN lens ; Surface reflectivity ; Refractive index
• 刊名：Optical Review
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：23
• 期：5
• 页码：829-833
• 全文大小：1,132 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Electromagnetism, Optics and Lasers
  
• 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.