We demonstrate the first buried optical waveguides in diamond using focused femtosecond laser pulses. The properties of nitrogen vacancy centers are preserved in the waveguides, making them promising for diamond-based magnetometers or quantum information systems.
@article{arxiv.1605.01854,
title = {Diamond photonics platform enabled by femtosecond laser writing},
author = {Belen Sotillo and Vibhav Bharadwaj and J. P. Hadden and Masaaki Sakakura and Andrea Chiappini and Toney Teddy Fernandez and Stefano Longhi and Ottavia Jedrkiewicz and Yasuhiko Shimotsuma and Luigino Criante and Roberto Osellame and Gianluca Galzerano and Maurizio Ferrari and Kiyotaka Miura and Roberta Ramponi and Paul E. Barclay and Shane Michael Eaton},
journal= {arXiv preprint arXiv:1605.01854},
year = {2016}
}