Nondestructive optical measurement of refractive-index profile of graded-index lenses

Byounghwak Lee, Naeho Shin, Kwan Jeong, Myoung Jin Park, Byung Gyu Kim, Jang Hoon Yoo, Dae Geun Kim, Ki Hyuck Yun, Kewseung Lee, Kyung Hwan Kim, Dae Kyu Kim, Seung Han Park

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We propose a simple nondestructive method to obtain refractive-index profiles of a graded-index (GRIN) light-focusing rod by means of a diffraction grating. In our proposed method, a laser beam is illuminated through a diffraction grating perpendicular to the axis of the GRIN lens and the separation between the zeroth and first-order diffraction peaks is measured and analyzed. The results demonstrate that the refractive-index profiles of commercially available GRIN lenses can be successfully reconstructed.

Original languageEnglish
Pages (from-to)468-471
Number of pages4
JournalJournal of the Optical Society of Korea
Issue number4
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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