RT Journal Article T1 Measurement of graded-index media using digitized images of light paths A1 Piquero Sanz, Gemma María A1 Serna Galán, Julio AB In a stratified graded-index medium the variation of the refractive index can be measured directly from the analysis of light paths. Only Snell's law and a simple set-up based on digitized images and a personal computer are needed. PB IOP Publishing Ltd. SN 0143-0807 YR 2002 FD 2002-09 LK https://hdl.handle.net/20.500.14352/58815 UL https://hdl.handle.net/20.500.14352/58815 LA eng NO © 2002 IOP Publishing Ltd. DS Docta Complutense RD 18 abr 2025