We have investigated the effect of a broadband light source and back reflected light in a reflection-type confocal refractive index measurement system in detail. The effect of these factors was calculated, and a detailed analysis of the error sources was thoroughly examined. We have verified our calculated results with experiments by using a broadband light source and various index matching oils.
Bibliographical noteFunding Information:
This work was supported by Creative Research Initiatives (3D Nano Optical Imaging Systems Research Group) of MOST/KOSEF.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering