Direct-write electron beam fabrication of optically active diamond nanostructures

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Conference Proceeding
2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014, 2014, pp. 6 - 10
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© 2014 IEEE. Controlled fabrication of semiconductor nanostructures is a prerequisite step in the engineering of next generation photonic and optoelectronic devices. Here we describe two advances in electron beam processing of single crystal diamond: (i) chemical dry etching of optically active nanostructures, and (ii) chemical switching of the charge state of nitrogen-vacancy centers by surface fluorination. Etching and fluorination are realized by irradiating diamond by kiloelectronvolt electrons at room temperature in the presence of H2O and NF3 vapor, respectively. The techniques do not generate defects that quench luminescence, thereby enabling the fabrication and editing of optically active nanostructures and diamond-based devices.
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