Color-centers integrated with nanophotonic devices have emerged as a compelling platform for quantum science and technology. Here we integrate tin-vacancy centers in a diamond waveguide and investigate the interaction with light at the single-photon level. We observe single-emitter induced extinction of the transmitted light up to 25% and measure the nonlinear effect on the photon statistics. Furthermore, we demonstrate fully tunable interference between the reflected single-photon field and laser light back-scattered at the fiber end and show the corresponding controlled change between bunched and anti-bunched photon statistics in the reflected field.
@article{arxiv.2311.12927,
title = {Nonlinear Quantum Photonics with a Tin-Vacancy Center Coupled to a One-Dimensional Diamond Waveguide},
author = {Matteo Pasini and Nina Codreanu and Tim Turan and Adrià Riera Moral and Christian F. Primavera and Lorenzo De Santis and Hans K. C. Beukers and Julia M. Brevoord and Christopher Waas and Johannes Borregaard and Ronald Hanson},
journal= {arXiv preprint arXiv:2311.12927},
year = {2024}
}