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Ultrafast Optics (UFO)

Ultrafast laser writing tool kit for quantum technologies

Giulio Coccia, Sajedeh Shahbazi, Akhil Kuriakose, Yanzhao Guo, Argyro N. Giakoumaki, Vibhav Bharadwaj, Mihael K. Koch, Michael Hoese, Ottavia Jedrkiewicz, Paul E. Barclay, John Patrick Hadden, Anthony J. Bennett, P. Olivero, Roberta Ramponi, Alexander Kubanek, Shane Michael Eaton

Published Jan 1, 2023• 0 citations
Publisher

Abstract

The possibility to develop room-temperature quantum sensors by focusing ultrashort laser pulses inside the bulk of diamond is introduced. A systematic study of the laser fabrication parameters is presented, leading to the enhanced sensitivity of quantum sensing devices in diamond.
DOI
10.1364/ufo.2023.p1.12

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Femtosecond laser writing shows great potential for novel 3D photonic architectures and high quality NV- quantum emitters in the bulk of diamond. However, the direct writing method cannot achieve nanometric placement of NV- centers near the surface of diamond, which is required for certain quantum sensing tasks. We will demonstrate a hybrid approach where the advantages of 3D optical waveguides by femtosecond laser writing and precise and shallow placement of NV- centers by ion implantation will be combined to form an integrated quantum sensor with record high performance.
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