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Index of refraction from the near-ultraviolet to the near-infrared from a single crystal microwave-assisted CVD diamond

MetadataDetails
Publication Date2017-02-13
JournalOptical Materials Express
AuthorsG. Turri, Scott Webster, Ying Chen, Benjamin J. Wickham, Andrew M. R. Bennett
InstitutionsUniversity of Central Florida, Element Six (United Kingdom)
Citations34

The refractive index of a type IIa CVD-grown single-crystal diamond was measured by ellipsometry from the near ultraviolet to the near infrared region of the spectrum. As a consequence, a one term Sellmeier Equation with coefficents of B-1 = 4.658 and C-1 = 112.5 for the refractive index of diamond, for the wavelength range from 300 to 1650 nm, was derived that is only as accurate as the input data, +/- 0.002. The experimental results in this paper between 800 and 1650 nm are new, adding to the values available in the literature.