Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1540065 | Optics Communications | 2006 | 4 Pages |
Abstract
The group refractive index of BK-7 glass material is accurately measured using a tandem low-coherence interferometer, which is composed of a Mychelson interferometer and a Fizeau interferometer, within a combined standard uncertainty of 8.4 ppm. The experimental results are compared with the value calculated from the conventional data base on the phase refractive index, within a difference of about 4.7 ppm. This new method is applicable to in situ measurement due to the principle of its common optical path.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
H. Matsumoto, K. Sasaki, A. Hirai,