Tailoring the optical constants of diamond by ion implantation
Author(s) -
Martin Draganski,
E. Finkman,
Brant C. Gibson,
Barbara A. Fairchild,
Kumaravelu Ganesan,
Nataliya Nabatova-Gabain,
Snjezana TomljenovicHanic,
Andrew D. Greentree,
Steven Prawer
Publication year - 2012
Publication title -
optical materials express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 66
ISSN - 2159-3930
DOI - 10.1364/ome.2.000644
Subject(s) - materials science , diamond , ion implantation , optoelectronics , ion , optics , nanotechnology , chemistry , physics , composite material , organic chemistry
We study the effect of 30 keV gallium ion implantation on the optical properties of diamond, as determined using spectroscopic ellipsometry. We find that the refractive index of the implanted layer can be either lower, or higher, than that of pristine diamond, depending on the implantation dose. This observation provides a new route to optical device fabrication in diamond using focused ion beam methods. In particular, in the low dose regime, lowering of the refractive index would allow for core-cladding type structures to be defined where the core has not interacted with the beam, and is hence undamaged by the implantation.
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