2005•Physics ExperimentationRequires access

Influence of temperature on the refractive index nonlinearity of gas

Xing Jin-hua

Abstract

White-light interference of Michelson interferometer to measure group refractive index is improved, where grating displacement sensor is used to increase the displacement precision of scanning mirror. The nonlinear fit equation the air refractive index depend on temperature is given, and the precision on fitted factor is 10~ -5 ℃~ -1 .

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Available abstract

Key concepts: Refractive index, Optics, Displacement (psychology), Interference (communication), Interferometry, Grating, Michelson interferometer, Materials science