Directionality in laser fabrication of 3D graphitic microwires in diamond

B. Sun; P. S. Salter; M. J. Booth

doi:10.1117/12.2212686

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4 March 2016 Directionality in laser fabrication of 3D graphitic microwires in diamond

Proceedings Volume 9736, Laser-based Micro- and Nanoprocessing X; 973612 (2016) https://doi.org/10.1117/12.2212686
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

Graphitic wires embedded beneath the surface of single crystal diamond are promising for a variety of applications. Through a combination of ultra short (femtosecond) pulsed fabrication, high numerical aperture focusing and adaptive optics, graphitic wires can be written along any 3D path. Here, we demonstrate a non-reciprocal directional dependence to the graphitization process: the features are distinct when the fabrication direction is reversed. The non-reciprocal effects are significantly determined by the laser power, the fabrication speed, the light polarization and pulse front tilt. The influences of these factors are studied.

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B. Sun, P. S. Salter, and M. J. Booth "Directionality in laser fabrication of 3D graphitic microwires in diamond", Proc. SPIE 9736, Laser-based Micro- and Nanoprocessing X, 973612 (4 March 2016); https://doi.org/10.1117/12.2212686

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