Acta Optica Sinica, Volume. 6, Issue 11, 1018(1986)
NondestructlYe index profiling of a GRIN sphere:large aperture shearing harmonic interferometer
The refractive index profile of a gradieEt index sphere can be measured rapidly, automatically and condestructively by a large aperture shearing harmonic interferometer. The apparatus, principle and technique of measurement are described and the data treatment and results are discussed. Computer simulation and experiments show that the curved ray analysis gives better accuracy than the straight ray analysis for large Δn in transverseinterferometry.
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Duncan T. Moore, Gao Yingjun. NondestructlYe index profiling of a GRIN sphere:large aperture shearing harmonic interferometer[J]. Acta Optica Sinica, 1986, 6(11): 1018