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Optical constants and thermo-optic coefficients of nanocrystalline diamond films at
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10.1063/1.2243863
/content/aip/journal/apl/89/8/10.1063/1.2243863
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/8/10.1063/1.2243863

Figures

Image of FIG. 1.
FIG. 1.

Experimental ellipsometric spectra of the NCD film at different temperatures. Only the spectra obtained at 30, 100, 300, and are presented for clarity. The insets show the enlarged redshift at for 30 and .

Image of FIG. 2.
FIG. 2.

Absorption coefficients of the NCD film determined from the measured absorption index in the subgap region (solid line). The dashed line presents results from Ref. 14. For comparison data of single-crystal diamond are also shown.

Image of FIG. 3.
FIG. 3.

Energy dependence of the refractive index of the NCD film is shown for 30, 300, and . The inset shows that the fitted oscillator strength of Eq. (1) increases linearly with temperature.

Image of FIG. 4.
FIG. 4.

Variation of the refractive index of the NCD film with temperature for the three photon energies of 1.20, 2.00, and and the fit (solid lines).

Image of FIG. 5.
FIG. 5.

Variation of the thermo-optic coefficient of the NCD film with photon energy at (a) and with temperature (b). Experimental results of single-crystal diamond are included for comparison in (a) (Refs. 3 and 4). The dashed line is a guide for the eyes.

Tables

Generic image for table
Table I.

Parameter values of Eq. (2) for the NCD film. is the optical absorption coefficient. The results of single-crystal diamond at the photon energies of 0.56 and are taken from Refs. 3 and 4, respectively.

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/content/aip/journal/apl/89/8/10.1063/1.2243863
2006-08-22
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical constants and thermo-optic coefficients of nanocrystalline diamond films at 30–500°C
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/8/10.1063/1.2243863
10.1063/1.2243863
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