Nonlinear Quantum Photonics with a Tin-Vacancy Center Coupled to a One-Dimensional Diamond Waveguide
M. Pasini, Nina Codreanu, Tim Turan, Adrià Riera Moral, Christian F. Primavera, Lorenzo De Santis, Hans K. C. Beukers, Julia M. Brevoord, Christopher Waas, Johannes Borregaard, Ronald Hanson
Abstract
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 in both reflection and transmission. 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 backscattered at the fiber end and show the corresponding controlled change between bunched and antibunched photon statistics in the reflected field.