Improved method for measuring refractive index of a medium | Zendy

Der-Chin Su | Zendy; Ju Yi Lee | Zendy

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<title>Improved method for measuring refractive index of a medium</title>

Author(s) -

Der-Chin Su,

Ju Yi Lee

Publication year - 1998

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.312943

Subject(s) - optics , refractive index , heterodyne (poetry) , azimuth , interferometry , fresnel equations , phase (matter) , transmission (telecommunications) , spectrum analyzer , physics , materials science , computer science , telecommunications , acoustics , quantum mechanics

An improved method for measuring the refractive index of a medium is presented. First, the light coming form a circular heterodyne source is incident on the test medium. And, the reflected light passes through an analyzer with the transmission axis at a moderate azimuth angle. Then, the phase variation of the reflected light is measured by the heterodyne interferometric technique. Finally, substituting this phase variation into the equations derived from Fresnel's equations and Jones calculus, we can obtain the refractive index of the test medium.

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