Spectroscopic measurement of the refractive index of ion-implanted diamond

Abstract

We present the results of variable-angle spectroscopic ellipsometry and transmittance measurements to determine the variation of the complex refractive index of ion implanted single-crystal diamond. An increase is found in both real and imaginary parts at increasing damage densities. The index depth variation is determined in the whole wavelength range between 250 and 1690 nm. The dependence from the vacancy density is evaluated, highlighting a deviation from linearity in the high-damage-density regime. A considerable increase (up to 5%) in the real part of the index is observed, attributed to an increase in polarizability, thus offering new microfabrication possibilities for waveguides and other photonic structures in diamond.

3 pages, 4 figures

References in corpus (2)

• Evidence of light guiding in ion-implanted diamond
• Controlled variation of the refractive index in ion-damaged diamond

Cited by in corpus (4)

• Development and characterization of a diamond-insulated graphitic multi electrode array realized with ion beam lithography
• Complex refractive index variation in proton-damaged diamond
• An analytical model for the mechanical deformation of locally graphitized diamond
• Micro-beam and pulsed laser beam techniques for the micro-fabrication of diamond surface and bulk structures