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Optical Properties of Laser-Modified Diamond Surfaces

Published online by Cambridge University Press:  15 February 2011

A.V. Khomich ,
V.I. Polyakov ,
S.M. Pimenov ,
V.V. Kononenko ,
V.I. Konov ,
S. Gloor ,
W. Lüthy  and
H.P. Weber
A.V. Khomich
Affiliation:
Institute of Radio Engineering & Electronics, Moscow, Russia
V.I. Polyakov
Affiliation:
Institute of Radio Engineering & Electronics, Moscow, Russia, vip197@ire216.msk.su
S.M. Pimenov
Affiliation:
General Physics Institute, Moscow, Russia
V.V. Kononenko
Affiliation:
General Physics Institute, Moscow, Russia
V.I. Konov
Affiliation:
General Physics Institute, Moscow, Russia
S. Gloor
Affiliation:
Institute of Applied Physics, University of Bern, Bern, Switzerland
W. Lüthy
Affiliation:
Institute of Applied Physics, University of Bern, Bern, Switzerland
H.P. Weber
Affiliation:
Institute of Applied Physics, University of Bern, Bern, Switzerland
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Abstract

Results are reported on laser-induced surface modification of 150-400 µm thick free-standing diamond films with excimer lasers under different irradiation regimes, including laser polishing at a grazing beam incidence or ablative etching of the films at the normal beam incidence. Properties of the laser-graphitized layer at the diamond surface were studied with optical spectroscopy techniques in the process of oxidative removal of the layer with increasing temperature of oxidation in ambient air. The optical properties and oxidation stability of the laser-modified surface layer were found to change through its thickness from the surface to the diamond interface, depending on the laser ablation regime.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 540: Symposium N / Microstructural Processes in Irradiated Materials , 1998 , 237
Copyright
Copyright © Materials Research Society 1999

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